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an external hammer may catch on a loose article of clothing in an emergency situation, because the hammer protrudes at an angle from the rear of the weapon, and as the owner moves to quickly draw their weapon, the hammer may snag on clothing and cause the loss of seconds in a dangerous situation. Paul B. Weston, an authority on police weapons, called the external a "fish hook" that tended to snag clothing during a fast draw.
396:
318:
392:, specifically, there is an ever-present danger of accidentally discharging the weapon if the hammer is struck with a cartridge loaded in the chamber. There is nothing to prevent the hammer from contacting the firing pin and by default the cartridge, in some models, and so the gun will be discharged unintentionally.
420:
in that the hammer is a separate component from the firing pin. When released, a linear hammer, under spring pressure, slides along the bore axis rather than pivoting around a pin placed perpendicular to the bore, as with the more common rotating hammer. The hammer then impacts the rear of the firing
407:
is actually pulled. Even so, many single-action revolver owners choose to carry their revolver with the hammer resting on an empty chamber to minimize the risk of accidental discharge. Additionally, for those who carry their firearm as a personal defense weapon, there is the ever-present worry that
271:
309:
and hammer system that is even now still used in certain designs. Whereas the percussion cap in the caplock mechanism was external, the percussion cap in a self-contained cartridge is inside the breech. It is therefore necessary to use a
289:
revolver of 1836 used percussion caps. The hammer and other components of the firing mechanism are mounted between the sides that form the frame. While not unique, percussion and flint-locks more typically use a
369:(extension) to facilitate manual operation. An internal hammer cannot be accessed manually during operation. Pistols and shotguns in particular, which have an internal hammer may be referred to as being
156:
From the top: striker-fired, linear hammer with free-floating firing pin, hammer-fired with free-floating firing pin, and hammer-fired with integral firing pin
191:
can refer to a part of the hammer or a part mechanically attached to the pivot-point of the hammer, depending on the particular firearm under discussion (see
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is a type of firing pin operated by the direct action of a spring rather than by a hammer striking the firing pin. Striker-operated firearms lack a hammer.
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Other models do have an internal safety mechanism that prevents contact between the hammer and the firing pin unless the
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which contained the projectile, gunpowder, and percussion cap all in a single shell that could be easily loaded from the
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being modified to strike a small cup-like cap containing percussive material. The cap was placed over an external
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An external hammer is one that can be accessed by the operator during use. This allows the hammer to be manually
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There are some notable drawbacks to the external hammer system compared to other modern, internal designs. In
259:, which acts as an anvil and conduit to ignite the main propellant charge within the breech. In this use, the
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1983:
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in both form and function. The hammer itself is a metal piece that forcefully rotates about a pivot point.
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allowed the cock to rotate forward at a speed sufficient to produce sparks when it struck the steel
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314:(a thin rod) to strike the primer through a small penetration in the breech and cause firing.
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The caplock was in wide use for almost five decades until the widespread introduction of the
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of a firearm. The introduction of such a technology led to the implementation of the
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firing mechanism, with the components mounted either side of the mounting plate.
248:
680:"A Matter of Purpose: Striker Fire vs. Hammer Fire – Small Arms Defense Journal"
483:"Firearms History, Technology & Development: Hammer Fired vs. Striker Fired"
227:. Prior to firing, the cock was held rearward under spring tension. Pulling the
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William F. Stevens. John
Kvasnicka. Ronald A. Howard Jr. and Marilvn Bergurn*.
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through a connecting vent hole. The identification of percussion sensitive
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251:(also caplock) was adapted from the flintlock firing mechanism, with the
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used as a propellant. The flint was fixed to a swinging arm called the
195:). According to one source the term tumbler is synonymous with hammer.
177:
173:
329:, showing the external hammer and integral firing pin typical of many
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striking steel to produce sparks and initiate firing by igniting the
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or eased (uncocked) without firing. The hammer is designed with a
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provided an alternative to spark ignition of the propellant. The
232:
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and fire the projectile. It is so called because it resembles a
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Mechanics and
Disassembly of the Norinco QBZ-97 / Type 97 NSR
216:
317:
650:"Hammer Or… "-Less?"Guns Magazine.com | Guns Magazine.com"
270:
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rifle. The hammer and firing pin are separate components.
2727:
399:
An external hammer that could easily catch on clothing
235:. This ignited a small priming charge in the external
239:, which in turn ignited the propellent charge in the
49:. Unsourced material may be challenged and removed.
164:is a part of a firearm that is used to strike the
416:A linear hammer is similar to but differs from a
3104:
607:, accessed 10 April 2023. Upon disassembly of a
3048:Small Arms & Light Weapons (SALW)
677:
459:"Principles of Firearms -- Functions -- Firing"
487:Firearms History, Technology & Development
146:Hammer uncocked (top). Hammer cocked (bottom).
737:
1451:
2260:
698:: CS1 maint: numeric names: authors list (
631:. 4-H Shooting Sports Guide. Archived from
744:
730:
533:. Hallowell & Co., Fine Sporting Guns
510:. Hallowell & Co., Fine Sporting Guns
109:Learn how and when to remove this message
394:
348:
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609:Smith & Wesson hammerless revolver
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211:In the development of firearms, the
47:adding citations to reliable sources
18:
274:All caplock mechanisms rely upon a
13:
1627:
611:, the internal hammer can be seen.
14:
3124:
614:
545:
475:
592:California Department of Justice
411:
136:
125:
23:
706:
671:
421:pin. Designs such as the Czech
34:needs additional citations for
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1:
2913:Firearms by country
2828:Civilian Marksmanship Program
444:
1632:
626:"Introduction to the Pistol"
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198:
7:
3084:Federal Assault Weapons Ban
2982:Campaign Against Arms Trade
588:West Sacramento, California
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10:
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3038:High-capacity magazine ban
2164:Mean time between failures
584:Handgun Safety Certificate
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678:Issue; V10N4; Volume 10.
429:utilize a linear hammer.
715:Accessed 3 October 2022.
357:uses an internal hammer.
299:self-contained cartridge
263:has come to be termed a
3068:by U.S. state
2478:Overpressure ammunition
2413:Improved Military Rifle
2119:Circular error probable
1038:Personal defence weapon
605:J-Frame Disassembly.mpg
390:single-action revolvers
323:Colt Single Action Army
2762:Civilian gun ownership
2291:Firing (Shooting)
656:. 2012. Archived from
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279:
208:
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58:"Hammer" firearms
2236:Handgun effectiveness
2169:Minute of Angle (MOA)
2045:Ballistic coefficient
1021:Semi-automatic pistol
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2853:in the United States
2511:Armour piercing
2072:Rangefinding/keeping
1984:Push/Controlled feed
1776:Synchronization gear
1511:Blank-firing adapter
1362: or famous
43:improve this article
2945:Privately made
2908:Firearm brands
2794:State firearms
2774:Exhibition shooting
2757:Celebratory gunfire
2616:Plastic tipped
2546:High explosive
2067:Physics of firearms
3113:Firearm components
3043:Right to bear arms
2989:Featureless rifles
2935:Improvised firearm
2896:3D printed firearm
2784:United States
2679:Fully powered
2586:Total metal jacket
2226:Stock measurements
949:Underwater firearm
845: versus
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3057:United States Gun
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2601:Hollow point
2526:Full metal jacket
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2391:Tubes and Primers
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2139:Gun harmonisation
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1878:Night vision
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1268:Automatic shotgun
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832:Types of firearms
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560:www.nramuseum.org
343:Marlin Model 1894
119:
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16:Part of a firearm
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2950:Small arms trade
2888:Firearm industry
2739:, and
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2596:Hollow base
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2423:Smokeless powder
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1714:Rail system
1588:Flash suppressor
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1394:Winchester rifle
1384:Antique firearms
1314:20-gauge shotgun
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207:Flintlock firing
176:, to ignite the
172:, or a separate
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100:
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27:
19:
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3021:Concealed carry
3016:Assault weapons
3011:Air travel
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2970: and
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2842:
2834:
2823:Shooting sports
2813:Pistol duelling
2743:
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2674:Rifle cartridge
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2581:Supercavitating
2576:Soft point
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2403:Ball propellant
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2243:Twist rate
2134:Gun chronograph
2124:Effective range
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2018:
1989:Recoil-operated
1892:
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1424:Colt Peacemaker
1350:
1324:Dragon's breath
1319:Breaching round
1302:
1283:Double-barreled
1241:
1217:General purpose
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894:Multiple-barrel
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249:percussion lock
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2149:Length of pull
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1974:Out-of-battery
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1452:Mechanics and
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1278:Combat shotgun
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1043:Submachine gun
1040:
1033:Pistol caliber
1030:
1029:
1028:
1018:
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1016:
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991:
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638:on 2018-04-17.
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166:percussion cap
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2940:Most-produced
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2015:
2012:
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2002:
2000:
1997:
1995:
1992:
1990:
1987:
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1982:
1980:
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1969:Muzzleloading
1967:
1965:
1962:
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1957:
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1950:
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1940:
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1934:Breechloading
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1700:
1699:Muzzle shroud
1697:
1695:
1692:
1688:
1687:Stripper clip
1685:
1683:
1680:
1678:
1677:High-capacity
1675:
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1425:
1422:
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1412:
1410:
1407:
1405:
1404:Mauser rifles
1402:
1400:
1397:
1395:
1392:
1390:
1387:
1385:
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1329:Shotgun shell
1327:
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1098:
1095:
1094:
1093:
1090:
1088:
1085:
1083:
1082:Anti-materiel
1080:
1079:
1076:
1073:
1070:
1066:
1062:
1056:
1053:
1051:
1048:
1044:
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1024:
1023:
1022:
1019:
1015:
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1007:
1005:
1002:
1000:
997:
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992:
988:
985:
984:
983:
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978:
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956:
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927:
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917:
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905:
902:
899:
895:
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888:
885:
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880:
878:
875:
874:
873:
870:
868:
865:
863:
860:
858:
855:
853:
850:
848:
844:
841:
840:
837:
833:
828:
824:
814:
811:
809:
806:
804:
801:
799:
796:
794:
791:
787:
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766:
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747:
742:
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735:
733:
728:
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724:
714:
709:
701:
695:
681:
674:
660:on 2016-04-19
659:
655:
651:
645:
634:
627:
620:
618:
610:
606:
601:
594:. p. 52.
593:
589:
585:
581:
575:
561:
557:
556:"NRA Museums"
551:
549:
532:
525:
509:
503:
488:
484:
478:
464:
460:
454:
450:
440:
437:
436:
430:
428:
424:
419:
412:Linear hammer
409:
406:
397:
393:
391:
381:
379:
374:
372:
368:
364:
356:
351:
344:
339:
332:
328:
324:
319:
315:
313:
308:
304:
300:
295:
293:
288:
287:Colt Paterson
284:
277:
272:
268:
266:
262:
258:
254:
250:
246:
242:
238:
234:
230:
226:
222:
218:
214:
205:
196:
194:
190:
185:
183:
179:
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171:
167:
163:
154:
139:
128:
113:
110:
102:
91:
88:
84:
81:
77:
74:
70:
67:
63:
60: –
59:
55:
54:Find sources:
48:
44:
38:
37:
32:This article
30:
26:
21:
20:
2960:Arms control
2840:Gun violence
2807:Jungle style
2806:
2779:Gun cultures
2684:Intermediate
2361:Fire forming
2211:Rate of fire
2082:Stadiametric
2060:Transitional
2004:Self-loading
1959:Gas-operated
1919:Blow-forward
1851:Red dot
1761:Squeeze bore
1709:Pistol slide
1694:Muzzle brake
1662:Bottom metal
1617:
1209:Machine guns
867:Line thrower
847:muzzleloader
843:Breechloader
708:
683:. Retrieved
673:
662:. Retrieved
658:the original
653:
644:
633:the original
600:
583:
574:
563:. Retrieved
559:
535:. Retrieved
524:
512:. Retrieved
502:
491:. Retrieved
489:. 2015-05-25
486:
477:
466:. Retrieved
462:
453:
415:
402:
387:
377:
375:
370:
366:
360:
311:
296:
281:
275:
264:
260:
256:
252:
224:
210:
188:
186:
161:
159:
105:
96:
86:
79:
72:
65:
53:
41:Please help
36:verification
33:
3074:Legislation
3026:in the U.S.
2977:Disarmament
2972:Gun control
2669:Handloading
2456:Dummy round
2328:Cooking off
2323:Malfunction
2311:Field strip
2306:Maintenance
2196:Penetration
2159:Match grade
2077:Mathematics
2009:Single-shot
1949:Closed bolt
1863:Scope mount
1826:Holographic
1816:Finderscope
1704:Pistol grip
1682:Speedloader
1536:Telescoping
1516:Breechblock
1389:Gatling gun
1288:Pump action
929:Single-shot
852:Combination
283:Samuel Colt
2878:Gun safety
2873:Gunfighter
2664:Centrefire
2646:Cartridges
2626:Snake shot
2566:Round shot
2556:Projectile
2541:Incendiary
2439:Ammunition
2398:Propellant
2366:Obturation
2338:Squib load
2266:ammunition
2104:Accurizing
2040:Ballistics
1954:Electronic
1873:Telescopic
1724:Recoil pad
1583:Firing pin
1558:Bump stock
1521:Breechface
1462:Components
1454:components
1307:Ammunition
1055:Wallet gun
999:Pepper-box
944:Spring-gun
939:Smoothbore
934:Sleeve gun
685:2023-09-19
664:2016-04-06
565:2016-04-06
537:January 5,
528:See also:
514:January 5,
493:2016-04-06
468:2016-04-06
445:References
439:Hammerless
371:hammerless
312:firing pin
307:firing pin
245:fulminates
178:propellant
174:firing pin
99:April 2016
69:newspapers
2918:Gun shops
2868:Forensics
2843:and
2789:Gun shows
2531:Frangible
2521:Expanding
2473:Gas check
2468:Flechette
2451:Cannelure
2376:Gunpowder
2333:Hang fire
2301:Firefight
2154:Lock time
2144:Headspace
2109:Bore axis
1994:Repeating
1944:Open bolt
1858:Magnifier
1744:Auto sear
1650:Wheellock
1645:Flintlock
1623:Half-cock
1578:Extractor
1479:Feed ramp
1409:Tommy Gun
1399:M1 Garand
1334:.410 bore
1298:Sawed-off
1273:Coach gun
1187:Repeating
1180:Polygonal
1104:Automatic
1087:Anti-tank
972:Derringer
862:Flare gun
508:"Tumbler"
384:Drawbacks
355:M16 rifle
331:revolvers
327:half-cock
292:side-lock
237:flash pan
221:gunpowder
213:flintlock
199:Evolution
193:half-cock
187:The term
3107:Category
3079:Politics
2999:Gun laws
2930:Gunsmith
2818:Politics
2737:industry
2659:Caseless
2461:Snap cap
2354:Ignition
2345:Ricochet
2286:Dry fire
2262:Shooting
2189:Velocity
2055:Terminal
2050:External
2014:Slamfire
1999:Revolver
1914:Blowback
1781:Tapering
1756:Silencer
1719:Receiver
1657:Magazine
1613:Foregrip
1603:Freebore
1573:Cylinder
1531:Rotating
1494:Trunnion
1360:Historic
1251:Shotguns
1170:Marksman
1148:Elephant
1050:Starting
1009:Revolver
977:Duelling
967:Cane gun
959:Handguns
919:Riot gun
887:Takedown
872:Long gun
857:Elephant
761:glossary
753:Firearms
694:cite web
582:(2009).
463:rkba.org
433:See also
3066: (
3033:License
2801:Hunting
2749:Society
2729:Society
2706:Wildcat
2701:Pinfire
2631:Spitzer
2561:Raufoss
2503:Bullets
2493:Wadding
2408:Cordite
2386:Rimfire
2316:Fouling
2296:Gunshot
2274:Gunshot
2114:Caliber
2097:Metrics
2028:Physics
1929:Boxlock
1902:Actions
1888:Zeroing
1883:Thermal
1841:Reticle
1811:Diopter
1786:Trigger
1633:Striker
1608:Forearm
1593:Fluting
1563:Chamber
1551:Tilting
1541:Flapper
1501:Bayonet
1489:Threads
1253: (
1175:Rifling
1163:Varmint
1153:Express
1143:Buffalo
1138:Hunting
1121:Carbine
1092:Assault
1067: (
994:Machine
914:Pen gun
909:Net gun
904:Needler
896: (
877:Carbine
798:History
781:Firearm
755: (
418:striker
405:trigger
378:striker
278:impact.
233:frizzen
229:trigger
189:tumbler
83:scholar
2863:Deaths
2845:safety
2733:safety
2611:Meplat
2591:Tracer
2418:Ramrod
2371:Primer
2216:Recoil
2179:Energy
2174:Muzzle
1846:Reflex
1803:Sights
1751:Shroud
1734:Safety
1628:Linear
1618:Hammer
1546:Roller
1474:Barrel
1227:Medium
1192:Sniper
1133:Double
1109:Battle
1065:Rifles
1004:Pocket
982:Pistol
924:Rotary
882:Musket
813:Weapon
803:Safety
765:topics
763:, and
531:"Sear"
427:QBZ-95
423:vz. 58
363:cocked
303:breech
276:hammer
265:hammer
257:nipple
241:breech
182:hammer
170:primer
162:hammer
85:
78:
71:
64:
56:
2696:Paper
2654:Blank
2621:ABCBC
2606:Minié
2551:HEIAP
2536:Green
2488:Sabot
2221:Group
2129:Gauge
1964:Lever
1939:Break
1836:Laser
1821:Globe
1791:guard
1771:Stock
1766:Choke
1434:Glock
1429:M1911
1414:MP 40
1374:AR-15
1369:AK-47
1232:Heavy
1222:Light
786:lists
636:(PDF)
629:(PDF)
217:flint
215:used
90:JSTOR
76:books
3064:Laws
2968:Arms
2923:list
2901:list
2741:laws
2689:list
2571:SLAP
2516:Cast
2264:and
2184:Rise
1979:Pump
1924:Bolt
1868:Tang
1831:Iron
1739:Sear
1672:Drum
1667:Clip
1640:Lock
1526:Bolt
1506:Belt
1484:Slug
1346:Slug
1341:Shot
1293:Riot
1255:list
1197:list
1158:Punt
1126:list
1114:list
1097:list
1069:list
1026:list
1014:list
987:list
898:list
757:list
700:link
539:2016
516:2016
367:spur
353:The
261:cock
253:cock
225:cock
160:The
62:news
2636:VLD
2483:PCA
1729:Rim
1419:Uzi
1379:M16
1237:SAW
808:War
793:Gun
325:at
285:'s
267:.
45:by
3109::
2735:,
2731:,
759:,
696:}}
692:{{
652:.
616:^
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586:.
558:.
547:^
485:.
461:.
376:A
373:.
341:A
321:A
3070:)
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1071:)
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745:e
738:t
731:v
702:)
688:.
667:.
568:.
541:.
518:.
496:.
471:.
333:.
168:/
112:)
106:(
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97:(
87:·
80:·
73:·
66:·
39:.
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