The C.O.P. C4 (Continuous Optics Platform) features a custom configured integrated upper receiver and handguard system. This extremely rigid design allows for symmetrical or asymmetrical rail platforms to accommodate a multitude of optic requirements. The hand guard system allows for a free-floated barrel giving the operator superior performance and accuracy.
The carbine length C.O.P. (C4) features a handguard that is properly sized to meet up with an A2 Front Sight Block when used with a carbine length gas system. It will cover the gas block when used with pistol length gas system and low profile gas block.
This system uses any standard AR-15 barrel, not a proprietary barrel system. The receiver design also has a fully enclosed dust cover pin which can be removed with the barrel in place.
Compatible with Mil - STD AR15 components
7075-T6 forged aluminum construction
Extremely rigid user configurable rail system
Free-Float handguard rail system
AR-15 Standard Barrel Interface, only the barrel nut and wrench are changed (both included)
Fully enclosed dust cover pin which can be removed with the barrel in place.
Dedicated thumb perch for improved ergonomics when gripping the magwell with the weak hand
All kit components made in the USA
Full Kit Includes:
2ea 1913 Half Rail
2ea 1913 Rail
1913 Rail with QD
2ea Flat Rail
Flat Rail with QD
2ea Quarter Panel
T25 Torx Driver
8-32 x 3/8 Screws
Barrel Nut Wrench
Factory Installed Dust Cover and Fwd Assist
Aero Precision C.O.P. bag roll
Aero COP C4 Carbine Kit
Great upper, great price. Its a bit tight with the rear take-down pin on my Diemaco lowers but still OK. Love the larger than MIL spec brass deflector. Comes in a very cool roll-up organizer
4 / 5