Canadian C7 & American M16A2

[Lee Enfield]

The C7 has the same 1/12 twist, light weight "pencil" barrel of the AR15/M16/M16A1. The beauty of which is that it'll perform with both the 55 grain M193 as well as 62 grain M855 ammo. The fast twist 1/7 barrels will not perform with the 55 grain M193 projectile. It also has a brass deflector in the upper receiver forging. Did the lower receivers of the early Diemaco C7 rifles have the reinforced lower receiver where the buffer tube screws in? ...snip...

C7 rifle barrels were always 1/7 " M16A2 contour - tapering to approx .625" under the hand-guards, .750" at the gas block journal/port and forward to the flash hider.

The CF demanded a HB, heavier than a Colt HBAR from what I understand, but Colt (wisely) refused to allow it.

The lower receiver was always M16A2 with Safe, Repeat, Auto, (no burst feature). They have the reinforced front pivots and receiver extension.

In effect, a C7 was an M16A2 with M16A1 shell deflector carry handle rear sight. I'm told that originally it used the M16A2 square front sight which was quickly changed to the M16A1 style round post.

[browningautorifle]

I'm told that originally it used the M16A2 square front sight which was quickly changed to the M16A1 style round post.

It wasn't so quick. It took some time before the change came, a round sight with four notches. The upper half of the post was half the size of the lower half. It was a trial pattern only, the weapons techs immediately changed EVERY single one before the trial began. That was a whole nother problem for them. We shooters didn't mind though and it's the only one I use now. We almost immediately changed to the flat top upper and C79 sight so it negated the sight use. Now, when I taught the small arms coaching course, I included iron sights. No one uses them so the troops were the only ones in the unit to use the emergency sight and be taught the way we used to do it...long since past now.

[HOOKED ON HISTORY]

With the discussion of balance and weight I thought I might toss my hat in the ring with this one. Retro Colt 651 fixed stock carbine. 4.5 inch barrel with pinned & welded extended A-1 flash hider so she is legal. Very well balanced with no sliding stock wiggle.
Very little information avaliable on these as to by whom and were used or production figures.
Attachment 69025

[browningautorifle]

Those might be the handiest shooters too...