Aero Precision Complete Upper M4E1-T 6.5 Grendel 18in 6.5 Grendel Rifle Length 1/8 Twist 5/8x24 Thread Stainless Steel w/ ATLAS S-ONE Handguard Black. 5 Grendel Complete Upper Receiver. Designed to be a low recoil/high accuracy cartridge the 6.5...
Aero Precision Complete Upper M4E1-T 6.5 Grendel 18in 6.5 Grendel Rifle Length 1/8 Twist 5/8x24 Thread Stainless Steel w/ ATLAS S-ONE Handguard Black. 5 Grendel Complete Upper Receiver. Designed to be a low recoil/high accuracy cartridge the 6.5...