In the Diemaco C-8A1 Assault Rifle, the carrying handle is replaced with a MIL-STD-1913 rail, and the standard sight is the same Elcan sight used by the C-7A1. The barrel used is heavier than that of the C-7 and C-7A1, but is still cold-forged. The C-8A2 Assault Rifle is essentially a C-8A1, but it has an even heavier barrel to allow sustained automatic fire, and short 4-position MIL-STD-1913 rails are added to the handguard. Though a version of the C-8A2 Assault Rifle is available with a 3-round burst setting, the Canadians use only the full-automatic version. It is unknown whether any other countries are using the C-8A2 Assault Rifle . The C-8FTHB is a development of the C-8A2; it differs from the C-8A2 primarily in having an extra-heavy bull barrel and standard handguards.
|C-8CQB Assault Rifle|
The Diemaco C-8CT Assault Rifle is sort of a “marksman’s carbine,” equipped with a 15.75-inch extra-heavy barrel tipped by a target crown. The andguards are replaced with aluminum tube-type handguards that allow the barrel to float. The Diemaco C-8CT Assault Rifle does have a MIL-STD-1913 rail atop the receiver, but the rail is about twice as long as that of the other C-8 Assault Rifle versions. The pistol grip is ergonomic with a hand stop/weight at the bottom.
|Diemaco C-8CT Assault Rifle|
The modified sliding stock includes a space for counterweights, a recoil pad on the butt, and has generally heavier construction that is more adjustable in length; this stock is also adjustable for swivel, cant and height in addition to length. The Diemaco C-8CT Assault Rifle is equipped with a two-stage trigger mechanism. The C-8CT Assault Rifle has a lightweight, adjustable bipod under the front of the handguard.
The Diemaco C-8CQB (Close Quarters Battle) Assault Rifle is designed for special operations forces and police SRT-type units for use in urban combat and house-to-house-type fighting. The barrel is abbreviated to 10 inches, and the muzzle is equipped with a Vortex muzzle brake to reduce recoil and muzzle flash. This muzzle brake may also be easily removed and replaced by either a silencer or suppressor if necessary. The Diemaco C-8CQB weapon does have a MIL-STD-1913 rail atop the receiver, but the standard Elcan sight is replaced by an EOTech low-magnification optical sight which is much more useful in close-range combat. The extractor is also strengthened in concession to the lower gas pressures delivered by the shorter barrel.