AR-15 Upper Parts

Aero Precision M4E1 Threaded Assembled Upper Receiver The Aero M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body...

Aero Precision AR-15 MOD 4 M-LOK Handguard The Aero Precision Minimal Optical Deflection (MOD) 4 handguard seamlessly blends robust construction with an ergonomic form factor, ensuring no compromises between the two. Machined from 6061-T6...