Product DescriptionThe DPMS Panther Arms "Kitty Kat" complete upper is a compact 5.56 NATO upper assembly built around a 7.5-inch chrome-moly vanadium steel barrel with a 1:7 twist and an M4 barrel extension. The nitrided barrel and pistol-length gas system are paired with a DPMS 4-inch knurled tube free-float handguard, an R-marked front sight gas block, and an A2 flash hider for a classic AR-style setup. The forged 7075-T6 C7 carry handle upper receiver is machined to MIL-SPEC dimensions and hardcoat anodized, and includes a forward assist, dust cover, and A1 rear sight aperture. A quality bolt carrier group rounds out the package with a shot-peened Carpenter 158 bolt and an 8620 steel M-16 full-auto profile carrier that is chrome lined and phosphate coated, with a gas key hardened to USGI specifications and staked per MIL-SPEC.Product Highlights 7.5-inch 5.56 NATO nitrided barrel with 1:7 twist and M4 barrel extension Pistol-length gas system with R-marked front sight gas block and A2 flash hider Forged 7075-T6 C7 carry handle upper receiver with hardcoat anodized finish Includes forward assist, dust cover, and A1 rear sight aperture Mil-spec bolt carrier group with Carpenter 158 bolt and 8620 chrome-lined carrier; staked gas keySpecs Brand: DPMS Panther Arms Manufacturer Part Number: DP51655155946 UPC: 810141220850 Type: Complete upper assembly Chambering: 5.56 NATO Barrel Length: 7.5 in Barrel Material: Chrome-moly vanadium steel Barrel Finish: Nitride (nitrided) Twist Rate: 1:7 Barrel Extension: M4 Gas System: Pistol-length Handguard: DPMS 4 in knurled tube, free-float Gas Block / Front Sight: R-marked front sight gas block Muzzle Device: A2 flash hider Upper Receiver: Forged 7075-T6 aluminum, C7 carry handle style Receiver Finish: Hardcoat anodized Forward Assist: Yes Dust Cover: Yes Rear Sight: A1 rear sight aperture Bolt: Carpenter 158 steel, shot-peened (mil-spec) Carrier: 8620 steel, M-16 full-auto profile; chrome lined and phosphate coated Gas Key: Hardened to USGI specifications; Grade 8 fasteners; staked per MIL-SPECDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.