Griffin Armament RECCE 16 inch 5.56mm. 56mm 16 inch Upper was designed to provide an enhanced shooting experience for any dual-purpose AR platform. Built with an ultralight low profile and ultra-rigid design these AR15 Uppers from Griffin Firearms & Ammunition feature M-LOK slots that can be positioned to secure laser sights red dot sights and any other accessories you need to advance your accuracy. The incredibly strong Griffin HEDP MK1 RECCE 5.56mm 16 inch Upper also features a 1/2x28 industry standard thread that allows you to mount a wide variety of accessories you need such as IR laser aimers and night vision devices. This Griffin HEDP MK1 RECCE 5.56mm 16 inch Barrel has a 5R length gas block journal and a M4A1 contour that reduces recoil for a more comfortable shooting experience. For a great way to make sure you are using some of the best gear the shooting industry has to offer choose the Griffin Firearms HEDP MK1 RECCE M-LOK Upper. Specifications for Griffin Armament MK1 RECCE 5.56mm 16 inch Upper: Manufacturer: Griffin Armament Caliber: 5.56x45mm NATO Barrel Length: 16 in Muzzle Device: Griffin Silencer Mount Muzzle Device Finish: Anodized Color: Black Model: RECCE Gun Rail: M-LOK Gun Model: AR-15 Magazine Included: No Length: 16 in Package Contents: Griffin Armament MK1 RECCE 5.56mm 16 inch Upper What firearm models does the manufacturer say Griffin Armament MK1 RECCE 5.56mm 16 inch Upper is compatible with? The manufacturer suggests that Griffin Armament MK1 RECCE 5.56mm 16 inch Upper is compatible with AR-15Griffin Armament MK1RECCEU: RECCE 16 inch 5.56mm