7.62mm chain gun. They still build the LSW.

Where did you get the lower engraved? That's awesome.

I didn't even know I needed one of these until I read your thread. My grandmother was from Nova Scotia, that's enough rationalization for me.

Sorry, was talking about the chain-gun still. Knew about the LSW.

Colt developed a series of machine guns based on the AR action called the CMG in the sixties for aircraft mounting. Can't seem to find good internet pics at the moment, but I believe many are in the Reed Knight collection.

My understanding is that the idea is long long since dead.

Was just confirming the Diemaco wasn't still toying with the idea.

~Augee

I've done 3 of the variations, C8FTHB, C7A2, and C8, parts hard to come by but have a spare simon sleeve.
The trick is to get the Proper Diemaco Devteck marked upper, the lowers can be engraved to match. As for the C8FTHB or Special Forces Weapon, the real trick is that the barrel it not the standard 16" but 15.8", and then there is the sleeve. I've had them machined as you can't buy that profile stock. Then you are in need of the Hammer Forged barrels, and Triad to be proper.

Funny enough this C7A2 is mine, don't know how that got out there! Wasn't finished yet but now have all the parts in place. I'll post other pics later today or so.
You can see the Triad Diemaco rail under the FSB.
I put the KAS on my SFW, better setup but not exactly correct: the CF troops liked it better but Knight's coultn't supply enought with most going to the US contract. Still the KAS is correct for most SFW variants and is part of the Colt/Diemaco package.
This C7 has an orriginal 20 hammer forged barrel by Diemaco, very scarce, and noticeably heavier than my Colt's. I have to say it seems to shoot more precisely but that could just be the weight keeping the muzzle down?? They claim the hammer forged barrels will outlast those button formed: ie Colt's process. This one is midlife use, shot a bunch of full auto at the range with the CF before retired, rifling still looks brand new!
The C7 also has a finer FSpost. This one is made to represent the upgrade going on now in the CForces: Green furniture, 4pos stock/buttpad, H2 buffer, Triad, ambi selector- mag catch- and charging handle, C2 Elcan with green cover, cadpat sling.


Here's a pic of the lowers


Here's a taclatch


Here's a Devtek BCG


Here's one of my uppers used

Here's my take on these so far:
C7A2




CF fine FSpost

Ambi selector, Devtek upper

Green furniture which works out not to be Colt's OD but more a forest green

Cadex folding grip and proper Cadex rail upgrade, detail of the Triad mount

Thermold Mag CF marked, still advertised as the Diemaco style mag but the CF has gone to the Steel mags, the Thermolds tended to have the feed lips break.
Diemaco Ambi mag catch, Devtek marked but otherwise a copy of the Norgon

C8FTHB, also called SFW, waiting on finished 15.8 barrel to mount KAS. This one is a 1" profile stainless HBar under the grips, it should be 21.5mm tapering to 18.2mm at the FSB

Proper oversized stowage grip by Lonestar

CF fine front site post for longer range engagment

Diemaco textured fibrelite stock and rubber buttpad, is different than Colts


Diemaco Ambi charging lever

Simon sleeve

C8, waiting on colts 14.5 pencil .625 profile barrel to correct, and need to delete the handguard lower rail and add a Triad


Diemaco specific siteguard

So there you go. As always the fun is in the hunt once you know what to look for

~Augee

iancnclaw, very nice rifles, good job.

I'd heard about the Dlask lowers and thought they were supposed to good clones but that engraving looks terrible. C7 isn't centered like it should be.

.625" 14.5" barrel isn't correct for a C8. Diemaco used a lightweight profile with a .750" gas block that came from the XM4 project and AFAIK the C8 is only production rifle to use that particular profile.

XM4 Barrel Profiles:




I've always wanted to do an RO720 clone with the center profile:






Given the other projects I want to do like RO723 and 727 clones, I doubt it will ever come to pass, as it wouldn't really offer me much different than an RO727 - and it would be more costly, as I'd have to get a Colt barrel re-profiled.

~Augee

I don't think so, military only via CADEX but they have a variant:
.http://cadexdefence.com/Tri_rail_mount.html
You usually find them for sale on the EE, if at all.