The PSA 20" Complete Upper comes with complete with BCG and charging handle.

Features:

• Barrel: 20" Chrome-moly barrel steel chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a rifle-length gas system. The A2-style profile barrel is finished with nitride finish for durability. Barrel is finished off with an .750" diameter low-profile gas block, PSA 15" Lightweight M-Lok free float rail, and an A2 flash hider.
• Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring M4 feed ramp cuts, may have T-marks, these upper receivers are made for us right here in the USA.
• Bolt Carrier Group: For AR15 and M16 rifles and carbines. Bolt is made of shot-peened, Mil-spec Carpenter 158® steel. Gas key is secured with grade 8 fasteners and staked. Bolt carrier is parkerized outside and chrome lined inside. Includes Charging Handle.

Specifications: 

• Barrel Length: 20"
• Gas System: Rifle Length
• Barrel Profile: A2 Style
• Barrel Steel: 4150V Chrome Moly
• Barrel Finish: Nitride
• Chrome Lining: None
• Muzzle Thread: 1/2-28
• Chamber: 5.56 NATO
• Twist Rate: 1 in 7"
• Barrel Extension: M4
• Diameter at Gas Block: .750"
• Gas Block Type: Low-profile
• Muzzle Device: A2 Flash Hider
• Receiver Material: Forged 7075 T6
• Receiver Type: M4
• Handguard Type: PSA 15" lightweight M-Lok rail
• Bolt Carrier Group Included: Yes
• Bolt Steel: Carpenter 158
• Bolt Carrier Profile: Full-Auto
• Charging Handle Included: Yes