Anyone here into firearms?

wstar · 06-03-2011, 05:56 PM

Quote:

Originally Posted by SgtGoldy

SO ive been looking at the Colt LE6940 for a bit now... thinking seriously bout getting it. Any thoughts, suggestions?

It's a solid gun for sure, one of the top few vendors of reliable AR-15s, and a good purchase.

This is the main caveat with Colt: I'm not up on the latest, but there have been issues about compatibility between semi-auto Colts and parts from other mfgs. Basically, normal full-auto M-4s and M16-s, and just about every aftermarket AR-15, all use the same interchangeable parts and specs. Colt changed some pin sizes on their semi-autos for the non-military market in an effort to make them incompatible with full-auto parts.

At one point in the past, what they did was make the front takedown pin (the front of the two large pins you pull to separate upper + lower receivers) larger (to prevent mix&match between full/semi Colt uppers and lowers). Then they also at some later point made the fire control group pin larger as well, so that you can't drop a select-fire trigger group and/or DIAS into them easily. I *think* with current new production, they now use normal-sized takedown pins, but still oversized FCG pins.

Aside from making full auto parts a pain (e.g. if you bought a Registered DIAS or Lightning Link or similar kit that worked for select-fire), these changes also can cause problems if you try to mix colt + non-colt semi-auto parts (upper<->lower received mating in the case of the takedown pin, lower receiver internals in the case of the FCG pin).

If you plan to leave it all-Colt and all-semi, it should be a non-issue.