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9/25/2010 12:17:53 PM EDT
Ok, so needing to get the overall length of my sbr, however its a little hard to do without the upper to measure it, (dont want to get caught with it since Im filling out the form 1).  
I have a Spikes Tactical ST15 lower, with the M4 stock and I am looking at getting a Gemtech Talon upper.  Ok so with out the upper in hand, need to know how to find the overall length with the butt stock fully extended.  The barrel length is 7.4" and the overall length is 14.375".  Please help.
Thanks
9/25/2010 7:25:09 PM EDT
[#1]
First off, it does not need to be precise –– no men in black are going to show up wielding micrometers to check.

A Colt 6933 Commando with 11.5" barrel is 30.5" overall. So an SBR with a barrel 4.1" shorter than a 6933 would have an OAL that also is 4.1" shorter.
9/25/2010 7:50:12 PM EDT
[#2]
In the SBR faq page there is a listing of pre-measured upper/oals
ETA: found it
9/26/2010 12:12:19 PM EDT
[#3]
Quoted:
First off, it does not need to be precise –– no men in black are going to show up wielding micrometers to check.

A Colt 6933 Commando with 11.5" barrel is 30.5" overall. So an SBR with a barrel 4.1" shorter than a 6933 would have an OAL that also is 4.1" shorter.


lol i'm building an 11.5 inch and i just guessed what it'd be with the stock all the way out to the end of the FH, my guess was 30.5, guess i guessed right
9/27/2010 3:15:45 AM EDT
[#4]
Thanks for the info, I am submitting my Form 1 today for a 12.5 so this post came in handy.
9/27/2010 6:24:12 PM EDT
[#5]
are you spposed to measure with the stock extended or collapsed
9/27/2010 6:42:58 PM EDT
[#6]
Extended.
9/28/2010 6:35:10 PM EDT
[#7]
It's also measured without any detachable muzzle devices.
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