I was reading on another forum where a guy posted this information:
An M4 has, and should have, and buyers expect the following, all of which bushmaster does NOT have:
1] M4 feed ramps
2] Staked down castle nut on collapsing stock
3] Parkerizing under the gas block
4] Proper height front sight block (F-marked) to actually allow one to sight in the rifle properly with a flattop.
5] Magnetically tested and proof load fired Bolt and Barrel with a 77k psi 100gr load. Each and every bolt and barrel is done.
6] Properly staked gas key that will not come loose ever.
7] Enhanced extractor spring is standard
9] Double heat shields in handguards.
10] Handguards are made out of the non-melting real-deal material.
11] The receiver extension (buffer tube) is Mil-spec and the proper size to accept aftermarket type stocks like the VLTOR.
12] Colt has the real M16 carrier, that features a shrouded firing pin, and more metal at the rear.
13] 1/7 twist rates
There are probably a few other little things I've forgotten, but you get the idea.
My question is does an MT6400C Martch Target M4 have the features listed above?
Or are these feature only found on the LE rifles like the LE6920?
I ask because the "gun store clerks" had no idea what I was asking, and I have no experience with AR15s at all, so looking at the rifles in person would be useless. My wife is buying me the Colt as a Christmas present, and I would really prefer to buy buy a MT6400C over the LE6920 as long as the internals are up to spec. I am simply going to replace the non-collapsible stock with one that does.