This Complete Upper includes our Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories. Includes:
M5E1 Assembled Upper Receiver 15" M-LOK Quantum Handguard of choice 22" 6.5 Creedmoor Stainless Steel Barrel Low Profile Gas Block and Rifle Length Gas Tube Product comes assembled This complete upper does not include a BCG or Charging Handle. These products may be selected as add-ons under the Finish Your Build tab.
M5E1 Upper Features:
Forged from 7075 T6 aluminum Precision machined to our specs M4 feedramps Laser engraved T-marks (Anodized only) .2795" takedown pin holes Accepts standard AR .308 components Comes with forward assist and port door installed Handguard mounting platform is forged into the receiver
Quantum Handguard Features:
1pc free float design Removable 4-slot picatinny rail section for front sight Built in anti-rotation tabs 7 mounting surfaces for KeyMod accessories 1.78" inside diameter fits most muzzle devices and 1.5" suppressors Compatible with low profile gas blocks