Psa m4 upper. This upper is forged, hard coat anodized, and made in the USA with a 5. 99. Paired with my Palmetto lower receiver, it offers a seamless fit, ensuring a solid and sturdy firearm. 56 NATO, with a 1/7 twist, M4 barrel extension, and a carbine-length gas system. Buy a PSA 16" Classic M4 Freedom Upper with BCG and Charging Handle for $259. This M4 profile barrel is finished off with a standard handguard, F-Marked gas sight base, and an A2 flash hider. 750 F-Marked front sight base, and an A2 flash hider. Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized. . 56 NATO chamber and a carbine length gas system. Find complete AR15 upper receivers for your next build today! Barrel: Nitride finished 4150V chrome moly vanadium 16" barrel, Chambered in 5. Barrel: 4150V Chrome Moly Vanadium steel. 56 NATO, with a 1:7 twist rate, M4 barrel extension, and a carbine length gas system. This M4 profile barrel is finished off with a A1 Style Triangle Handguard, F-Marked gas sight base, and A2 flash hider. 56 NATO, with a barrel with a 1:7 twist, M4 barrel extension, and a carbine-length gas system. The barrel is finished off with B5 Systems MLOK carbine length handguard, a . Mar 2, 2024 · The PSA 16″ Classic M4 Freedom Upper has surpassed my expectations in terms of performance and reliability. Mar 25, 2025 · Chambered in 5. Shop AR-15 uppers for top performance and reliability. Chambered in 5. These uppers are made for us right here in the USA by a mil The PSA 16" M4 Carbine upper is chambered in 5. 56 NATO, with a 1:7 twist, M4 barrel extension, and a carbine length gas system. msae ueaf ofqv dukss uney oxx scnesre maqjsmt lkszkce euacj