User Panel
User Panel
User Panel
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Posted: 6/25/2003 9:08:52 AM EDT
[#1]
If you permanently attach the flash hider, the it is from the face of the bolt to the edge of the flash hider. therefore, the 14.5 inch barrel with a welded on Gemtech bi-lock will be enough to satisify the require for 16inch.
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Posted: 6/25/2003 11:23:48 AM EDT
[#2]
Muzzle attachments only count towards legal barrel length if they are permanently attached using a BATF-approved method of attachment. Gem-Tech's installation would be considered permanent.
Barrels are measured by closing the bolt, and inserting a rod down the bore until it contacts the boltface. The rod is marked at the muzzle (or at the end of the muzzle device, if permanently attached), withdrawn, and measured. A Gem-Tech Bi-Lock will bring a 14.5" barrel out to about 16.2". -Troy |
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Posted: 6/26/2003 5:47:31 AM EDT
[#3]
So in actuality, my 16" SP-1 Barrel is really 16" + the birdcage flash unit?
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Posted: 6/26/2003 8:20:55 AM EDT
[#4]
Yes, a 16" bbl is 16" long. Any muzzle device will make it longer. This is why folks have permanent muzzle devices on 14.5" M4 barrels, to get them out to 16" as required by the NFA.
One tiny correction to measuring length, the length is measured to the face of a [b]cocked bolt[/b], no firing pin sticking out the front. Don't expect any barrel to measure .001" to its nomimal length either. -- Chuck |
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