Aero Precision M4E1/PSA JAKL 5.56 NATO Rifle, 14.5 in P&W to 16.5 in, Long-Stroke Piston, FDE with Raw/Clear-Anodized JMac Folding Triangle Stock
This component-built AR-15 pairs an Aero Precision M4E1 lower with a PSA JAKL 5.56×45 upper for a bufferless, long-stroke gas piston setup finished in FDE on the receivers/upper/handguard. It features a 14.5 in barrel with a two-prong ASR-pattern flash hider pinned and welded to an overall legal barrel assembly length of approximately 16.5 in, a raw/clear-anodized JMac side-folding triangle stock, and a monolithic-style M-LOK handguard with a full-length top Picatinny rail. The upper runs a reversible, non-reciprocating forward charging handle with right-side ejection and no dust cover, while the M4E1 lower includes integrated enhancements for a tight upper-to-lower fit.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape. There are some scratches and blemishes present.
What's Included
- 1x SureFeed 30-round 5.56mm AR-15 magazine (marked "SUREFEED" and "5.56mm")
Built on an Aero Precision M4E1 lower and topped with a PSA JAKL 5.56 upper, this rifle brings together proven components with a clean FDE finish on the receivers/upper/handguard and a raw/clear-anodized JMac stock. The M4E1 lower is marked "MOD M4E1" and "CAL MULTI" with the Aero logo and includes an integrated trigger guard, a threaded bolt-catch pin, and an upper-to-lower tensioning screw for a secure, rattle-free fit.
The PSA JAKL upper employs a bufferless, long-stroke gas piston system with right-side ejection. Its forward, non-reciprocating charging handle is reversible to accommodate user preference, and the design intentionally omits a dust cover. The result is a compact, durable operating system that does not require a receiver extension.
The barrel is 14.5 in and fitted with a two-prong ASR-pattern flash hider that is pinned and welded, bringing the overall barrel assembly length to approximately 16.5 in. The ASR-pattern mount complements the setup, and the rifle retains a threaded muzzle under the pinned device.
Furniture and controls are set up for practical handling: a raw/clear-anodized JMac triangle side-folding stock with a gray rubberized buttpad (12.5 in length of pull), a Magpul MOE pistol grip, and a flat-faced trigger. Up front, a monolithic-style aluminum M-LOK handguard integrates a full-length top Picatinny rail with M-LOK slots at 3, 6, and 9 o'clock. Capacity is 30+1 with the included magazine.

