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in 1986. Such weapons may be held only by law enforcement and military only except for "dealer samples" left in the hands of SOT holders. Fully automatic weapons converted to semi-automatic only operation are machine guns per the NFA. The BATFE's policy is "Once a machine gun, always a machine gun."
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is commonly done in order to enhance various aspects of the performance of a firearm. Reasons for these modifications can range from cosmetic to functional, and can be simple operations that the owner can perform, or complex operations requiring the services of a
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Care must be taken when modifying firearms, as some operations may convert a legal firearm into an illegal one. An example of this is the restrictions in the US
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components, removal of which may be illegal
Furthermore - conversion of semi-automatic weapons into select-fire weapons has been illegal for non-
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262:, integral locking mechanisms, magazine disconnects. Also commonly required are identifying marks such as serial numbers or
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Standard Ruger 10/22 Carbine on top, and a highly modified version below, all done by the owner with drop-in parts
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rifle, all of which have large numbers of aftermarket parts suppliers. Shooting disciplines such as
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235:, which define restricted classes of firearms. Examples of illegal firearms under this act are:
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Use of a shorter barrel to reduce size and weight, or a longer barrel to increase velocity
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also rely extensively on custom-built and modified firearms to achieve top accuracy.
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Rechambering or rebarreling for a new caliber, such as conversions made to chamber a
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Shotguns with overall lengths under 26 inches, or barrels under 18 inches in length
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Rifles with overall lengths under 26 inches, or barrels under 16 inches in length
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or other readily removable insert to fire a smaller, less expensive cartridge
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Adding or removing weight to ease carrying, alter balance, or help moderate
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These restrictions vary from location to location; some areas may restrict
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A gunsmith customized Ruger 10/22 by Clark Custom Guns.
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Short recoil to blowback conversions, used in various
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A conversion to a fixed cartridge of over .50 caliber
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Altering the metal finish, using techniques such as
258:capacity or require special safety devices such as
340:"Jonathan Arthur Ciener, Inc. .22LR Conversions"
130:to metallic cartridge conversions, such as the
203:Some commonly customized firearms include the
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380:"California Penal Code, Section 12090-12094"
58:Replacement or alteration of grips or stocks
270:holding gunsmiths since the passage of the
61:Changing of sights, such as the adjustable
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152:only or manual operation, or vice versa
360:"Carbine conversion kits from Mec-Tec"
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80:Checkering or stippling wood or metal
55:Cosmetic and ergonomic modifications
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77:Metal engraving or custom woodwork
16:Enhancement of a firearm's aspects
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180:Addition of a rifled barrel to a
163:and J. A. Ceiner conversion kits.
120:Operating mechanism conversions
316:Home Gunsmithing Digest, 2nd Ed
51:Common modifications include:
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314:Robert A Steindler (1978).
184:to allow it to better fire
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260:loaded chamber indicators
159:conversions, such as the
113:caliber conversion sleeve
420:Gun Control Act of 1968
47:Modifications performed
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264:firearm microstamping
233:National Firearms Act
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22:
400:"California AB 1471"
102:Caliber conversions
36:Firearm modification
437:Firearm terminology
318:. DBI Books, Inc.
221:benchrest shooting
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107:wildcat cartridge
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272:Hughes Amendment
166:Conversion from
140:Conversion from
132:Allin conversion
67:telescopic sight
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217:bullseye pistol
142:fully automatic
136:Lund conversion
128:paper cartridge
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157:.22 Long Rifle
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150:semiautomatic
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403:. Retrieved
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383:. Retrieved
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363:. Retrieved
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343:. Retrieved
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315:
253:
246:Machine guns
230:
227:Legal issues
209:M1911 pistol
202:
198:Sporterizing
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35:
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205:Ruger 10/22
146:select fire
93:parkerizing
63:iron sights
405:2007-11-28
385:2007-11-28
365:2007-11-28
345:2007-11-28
291:References
211:, and the
193:Accurizing
111:Use of a
431:Category
279:See also
256:magazine
161:Colt Ace
41:gunsmith
182:shotgun
172:carbine
168:handgun
322:
85:bluing
73:recoil
213:AR-15
176:rifle
91:, or
65:or a
418:See
320:ISBN
219:and
268:SOT
174:or
170:to
148:to
144:or
134:or
126:or
433::
298:^
87:,
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408:.
388:.
368:.
348:.
328:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
