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Shortening 16.5" Barrel


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#1 michigan bob

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Posted 18 November 2003 - 10:33 PM

I was wondering if any one had shortened a 27a1 barrel to take the compensator length in to acount. I live in Michigan and as far as I know I can't own a SBR. How much trouble is it to shorten the barrel the length of the compensator? Is it a leagal alternative for me?
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#2 TommyGunner

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Posted 19 November 2003 - 07:26 AM

Bob,

You can shorten the barrel and weld or solder the compensator on for a total of 16 inches and be ok. As long as the comp is permanently mounted to the barrel it counts. I beleive this is the case on Project 'X'? It is not too much trouble to do...but I would have an experienced gunsmith do the work to align the comp correctly.

Good Luck,
Damon

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#3 Zoo

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Posted 19 November 2003 - 11:12 AM

Another alternative is to have the compensator moved back, so that the front of it is lined up with the front of the barrel. Then permanent attachment is not an issue, and it gives you a 1/2" of safety if a cop ever calls you on the barrel length.
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#4 PK.

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Posted 19 November 2003 - 01:52 PM

A minor clarification on Damon’s post; the technical definition of “solder” is a process that occurs at less than 800 dF. In order to be in line with the law you need to silver braze (1100 dF min) or weld.

Both the modifications described make a big difference in the appearance of the semi gun, especially if used with the horizontal foregrip. Deerslayer is making longer horizontal foregrips and I would that only an inch longer would be very pleasant with a 16” overall barrel.

I do both modifications and they are both excellent, it depends on weather the customer wants the Cutts to work and is willing to clean it, or not.

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#5 TommyGunner

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Posted 19 November 2003 - 05:51 PM

Pk...Thanks for the clarification. I missed that one technicallity. ohmy.gif

Damon
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#6 michigan bob

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Posted 19 November 2003 - 10:55 PM

Thanks for the info. I think the shortening of the barrel and welding the compensator is what appeals to me. I have been reading the message board for about 6 months now and you guys have given me lots of good ideas on making my 27a1 more pleasing to the eye.
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#7 Theopolis

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Posted 21 November 2003 - 10:28 PM

PK, how short can one cut the barrel on a 1927 A5, if he will silver braze a Cutts to the end?

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#8 Bisley45

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Posted 21 November 2003 - 11:24 PM

the comp is 2 1/2" but the last 1/2" is threads. theoreticly you could cut the barrel to 14" and braze or weld the comp on but I'd lean tward 14.100 or so just to make sure the BATFE can't split hairs on measuring.

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#9 Theopolis

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Posted 21 November 2003 - 11:32 PM

Bisley45,
The 1927 A5 is the pistol version and starts out with a barrel length of 13.5 in. I know that putting a 10.5 in. barrel is too short to be within the non-NFA compliance. There is something to do with over-all length of the firearm because of the front pistol grip that limits the length. I just dont know how short I can have the barrel if the Cutts is added to the length by permanently affixing it.
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#10 Bisley45

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Posted 21 November 2003 - 11:38 PM

oops, I thought you had a 27A1

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#11 PK.

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Posted 22 November 2003 - 10:58 AM

Hi Theopolis,

When permanently attached accessories are present, the “barrel” includes these in the length specification. A permanently attached Cutts on an A5 barrel would make the length exactly what it was prior to the attachment.

Therefor (using round numbers), if the A5 stock barrel is 13”, cut 2” and add the comp to make it 13” again.

Some acceptable forms of permanent attachment are: Welding, brazing, silver brazing (1100 dF min), blind pin (welded).

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#12 Theopolis

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Posted 23 November 2003 - 12:28 AM

Thank You PK.

I guess I can have an 11.5 in barrel if the cutts in permanently affixed. That will look pretty darn cool, and nearly indistinguishable from the SMG barrel, except to the trained eye.


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