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No. Please refer to the first question, "Will this fit an Aero Precision M5 lower?" Aero Precision is a DPMS pattern rifle.There are two distinct patterns for the larger caliber (7.62x.51 NATO, 6.5 Creedmoor) Armalite based designed rifles: 1) AR-10, and 2) DPMS LR-308. The AR-10 patterns fall to the Armalite (AR-10), Knights Armament (SR-25), and Daniel Defense (DD5) rifles to name a few. Most all the DPMS patterns fall to DPMS (LR-308), Aero Precision (M5), CMMG (MK3), etc. The two designs are incompatible. Perform an Internet search of the names above and see how the aft portion of the upper and lower receivers of each design are manufactured. Armalite Rifles (AR) [Eugene Stoner to be precise] designed/manufactured their first rifle in 7.62x.51 NATO before the AR-15/M-16 rifle. The structure of the rear portion of the receiver on the Armalite design is angular rising up to the threaded buffer support ring. On the DPMS design, that portion of the receiver is curved the same as the AR-15. Hope this helps explain the difference.
Product Info for ArmaLite AR10 Tactical Upper Assembly
These hard working ArmaLite Tactical AR10 Complete Upper Assemblies come with a flash-hiding compensator that reduces both recoil and flash. ArmaLite manufactures these light and fast AR15 Upper Receivers with free-floating KeyMod handguards protecting the barrels. The adjustable gas block on these ArmaLite AR10 Upper Assemblies allows users to set them for optimal performance. Use these versatile ArmaLite AR10 Complete Upper Assemblies for professional duty or personal defense.
Features of ArmaLite AR10 Tactical Upper Assembly, .308 UAR10TAC:
Upper Receiver made of anodized 7075-T6 Aluminum
Front Sight Base: MIL-STD 1913 rail section at forward 12 O'clock position of forend
15 inch Aluminum tactical Key-Mod Forend
Forged, flat-top upper receiver with MIL-STD 1913 rail