- Upper Receiver Type: A3 Mini SASS Flat-Top
- Barrel Length: 18"
- Barrel Contour: Not listed by manufacturer
- Barrel Material: Stainless Steel
- Muzzle Thread Pattern: 1/2"-28
- Chrome Lined: No
- Barrel Finish: Black Matte
- Twist Rate: 1 in 8"
- Chamber: 5.56x45mm NATO
- M4 Feed Ramps: Yes
- Muzzle Device: Panther Flash Hider
- Gas System Length: Rifle
- Gas Block Diameter: .750"
- Handguard: Free Float Quad Rail
- Sights: Front and Rear Flip-Up
- Bolt Carrier Assembly Included: Yes
- Bolt Carrier Type: Commercial
Please Note: Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.