Aero Precision M4E1 5.56mm NATO 10.5 inch M-LOK Upper Receiver w/ FSB Carbine Length 1-7 Twist 1/2x28 7in Enhanced M-LOK Gen 2 Cerakote FDE

Aero Precision M4E1 5.56mm NATO 10.5 inch M-LOK Upper Receiver w/ FSB Carbine Length 1-7 Twist 1/2x28 7in Enhanced M-LOK Gen 2 Cerakote FDE. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip and visual appeal and a new profile for the picatinny top rail. Specifications for Aero Precision M4E1 AR-15 5.56mm NATO 10.5in M-LOK Upper Receiver w/ FSB: Manufacturer: Aero Precision Caliber: 5.56x45mm NATO Barrel Length: 10.5 in Barrel Profile: Government Gas System Length: Carbine Length Barrel Twist Rate: 1-7 Firearms Threads Per Inch: 1/2x28 Handguard Type: Free-Float Muzzle Device: A2 Flash Hider Finish: Magpul Cerakote Color: Flat Dark Earth Gun Model: AR-15 Handguard Length: 7 in Handguard Style: M-LOK w/ Top Picatinny Rail System Gun Rail: M-LOK Gun Type: Rifle Gun Make: AR Platform Barrel Material: 4150 Chrome Moly Vanadium Bolt Carrier Group Included: No Charging Handle Included: No Magazine Included: No Condition: New Country of Origin: USA Features of Aero Precision M4E1 AR-15 5.56mm NATO 10.5in M-LOK Upper Receiver w/ FSB: M4E1 Upper Features: Forged from 7075 T6 aluminum Precision machined to M4E1 specs M4 feedramps Matte black hard coat anodized Mil 8625 Type 3 Class 2 Laser engraved T-marks Comes assembled with port door and forward assist installed Accepts standard AR15/M16 components Handguard mounting platform is forged into the receiver Works with Aero Precision handguards but also fits most BAR-system handguards Barrel nut and wrench are included Gen 2 Enhanced Handguard Features: 1pc free float design Built in anti-rotation tabs Scalloped rails Continuous top rail 1.78" inside diameter fits most muzzle devices and 1.5" suppressors Compatible with low profile gas blocks Gen 2 Feature - Quick disconnect sling socket at the 3 6 and 9 o'clock positions Gen 2 Feature - Additional milling along flats to aid with gripping and add visual appeal Gen 2 Feature - New profile for the continuous picatinny top rail 10.5" Barrel w/ Pinned FSB Features: 5.56 Nato 10.5" carbine gas 1/7 twist 4150 CrMoV with F marked FSB taper pin .750 gas block journal Carbine gas system M4 Feed Ramp Extension HP and MPI tested Weight: 34 oz Front sight block comes stripped no sight post or sling swivel Standard A2 flash hider Package Contents: Aero Precision M4E1 AR-15 5.56mm NATO 10.5in M-LOK Upper Receiver w/ FSB M4E1 Enhanced Assembled Upper Receiver Enhanced Handguard of choice 10.5" 5.56 Carbine Length CMV Barrel Pinned FSB and Carbine Length Gas Tube Product comes assembled What firearm models does the manufacturer say Aero Precision M4E1 AR-15 5.56mm NATO 10.5in M-LOK Upper Receiver w/ FSB is compatible with? The manufacturer suggests that Aero Precision M4E1 AR-15 5.56mm NATO 10.5in M-LOK Upper Receiver w/ FSB is compatible with AR-15Aero Precision APAR640212M3: M4E1 Complete Upper 10.5in 5.56 Barrel w/ FSB EM-7 HG Gen 2 FDE Cerakote