PSA JAKL 5.56 NATO AR Pistol, 10.5 in, Long-Stroke Piston, Monolithic 1913/M-LOK, 1/2x28 Threaded
This PSA JAKL is configured with a 10.5-inch 5.56 NATO upper installed on a JAKL lower rollmarked .300 BLK. It uses PSA's long-stroke gas piston system with a captured recoil spring in the upper and a rear 1913 Picatinny end cap, creating a compact, bufferless setup. The monolithic upper/handguard features an uninterrupted 1913 top rail with M-LOK at 3, 6, and 9 o'clock, and the gas block is adjustable with a top-mounted control. Right-side ejection, a reversible charging handle, and a 1/2x28 threaded muzzle with a three-prong flash hider round out the package.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor surface scratches and blemishes are present from prior handling. The monolithic handguard shows marring in several locations.
What's Included
- PSA JAKL AR pistol configured with 10.5-inch 5.56 NATO upper on a JAKL lower rollmarked .300 BLK
- 1x 30-round polymer AR-15 pattern magazine (waffle-textured body; 5.56x45 marking molded on the mag)
The JAKL operating system uses a long-stroke gas piston with a captured recoil spring inside the upper. This design pairs with a rear 1913 Picatinny end cap for a bufferless layout while retaining right-side ejection and a reversible charging handle.
This example is a custom configuration: the lower receiver is rollmarked 300 BLK, while the installed upper is chambered in 5.56 NATO. In other words, the lower says 300blk but the upper is chambered in 5.56 NATO.
The monolithic upper/handguard provides an uninterrupted 1913 top rail with M-LOK slots at the 3, 6, and 9 o'clock positions. The adjustable gas block features a top-mounted adjustment. No sights are installed.
The 10.5-inch barrel is 1/2x28 threaded and fitted with a three-prong flash hider. The pistol feeds from AR-15 pattern magazines and is listed at 30+1 capacity. The first 5.56 JAKL variants were released in 2022, placing this configuration within that modern lineage.