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View Full Version : Colt LE6940CK upper receiver on a CMMG lower receiver?


WD562
12-05-2009, 5:53 AM
Does anybody know if I can put a Colt LE6940CK upper receiver on a CMMG lower receiver?

Thanks

rod
12-23-2009, 9:30 AM
Yes you may, but it won't fit together right away. I can't remember exactly what doesn't fit, but there are some aftermarket pins that you'll need to buy.

sytfu_RR
12-23-2009, 4:02 PM
Probably would have been better to ask this in the CenterFire Rifle Forum OR the Gunsmith section, get more views that way.

And Welcome to CG!

Turbinator
12-29-2009, 5:28 PM
Moving this thread for visibility.

Turby

BigAL
12-29-2009, 5:54 PM
Yes you may, but it won't fit together right away. I can't remember exactly what doesn't fit, but there are some aftermarket pins that you'll need to buy.

I have a LE6920. Unless they changed something on the 6940, a LE Colt upper will fit on any standard lower. You are probably thinking about the non-standard lower FCG pins that Colt uses (or used, I think they may be standardized now). The two pins that hold the upper and lower together are standard.

ETA: Actually, I think Colt did use non standard upper/lower pins way back, but no longer.

Tony.
12-29-2009, 8:40 PM
yes