Upgrade your AR-15 build with the PSA JAKL 14.5″ Rifle Length Upper Assembly in 5.56 NATO – the innovative piston-driven hybrid platform from Palmetto State Armory that’s redefining reliability and performance. This monolithic upper combines AK-inspired durability with AR-15 compatibility, delivering smoother recoil, easier maintenance, and suppressor-ready versatility.
Built around a rugged 6105 monolithic rifle-length receiver with an integrated handguard, the JAKL upper features a long-stroke gas piston operating system that captures the buffer and recoil assembly entirely in the upper – no traditional buffer tube required. This design shortens overall length when paired with a folding stock (requires compatible PSA JAKL lower or build kit with proprietary JAKL buffer system) and enables cleaner, tool-free field stripping of the carrier, recoil assembly, and sled.
Key premium components include:
- 14.5″ 4150V Chrome Moly Steel barrel with 1:7 twist rate and nitride finish for exceptional accuracy and longevity
- 7-lug shot-peened Carpenter 158 bolt paired with a 4340 carrier for maximum strength
- 8620 front trunnion for added durability
- Ambidextrous, non-reciprocating side charging handle (knurled black) – reversible left or right without tools for fast manipulation
- Toolless 8-position adjustable gas block for quick tuning, especially when suppressed
- B&T Assault 3-prong muzzle device (1/2×28 threads) – compatible with B&T ROTEX-SF HUB and SureFire Fast-Attach suppressors
- Includes full BCG and knurled charging handle
Perfect for shooters seeking a piston AR-15 upper, side-charging JAKL upper, or a modern hybrid rifle setup that’s easier to maintain than direct impingement while offering softer recoil and enhanced suppressor performance.
Note: Must be paired with a PSA JAKL- compatible lower/buffer system to avoid damage – ideal for custom builds, suppressed rifles, or tactical applications.
Drop this PSA JAKL 14.5″ 5.56 upper assembly onto your Mil-Spec AR-15 lower today and experience the next evolution in piston-driven performance. In stock and ready to ship!
By purchasing PSA JAKL 14.5″ Rifle Length Upper Assembly 5.56NATO w/Knurled CH/BCG & B&T 3 Prong from our online store, you are guaranteed to receive a high-quality item. We work with trusted brands to offer shooting and hunting enthusiasts, both amateur and professional, quality products at a reasonable price. Choosing to buy from us means opting for quality and practicality
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