WBP Poland Mini Jack MJ556SR 5.56mm NATO AK-Pattern Pistol, 10 inch Barrel, Polish Eagle Crest, Black, 30+1
The WBP Poland Mini Jack MJ556SR is a recent-release, AK-pattern semi-automatic pistol chambered in 5.56mm NATO with a 10 inch barrel. This example stands out for its stamped-steel receiver with magwell dimples, WBP-marked furniture, and an in-the-white bolt carrier. It also features a factory-engraved Polish eagle crest on the left side of the rear sight block and ships with a Beryl-pattern 30-round magazine.
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 Details: This firearm is in great shape, with minor exterior scratches and blemishes visible from prior handling.
What's Included
- Original box
- Sling
- Sight adjustment tool
- Manual
- 1x 30-round WBP Beryl-pattern polymer magazine (mag body marked "BERYL WBP")
This Mini Jack variant, marked "MINIJACK MJ556SR," uses a long-stroke gas piston system and a stamped receiver finished in black. The top cover is ribbed, and the left side of the receiver carries the serial marking. The external finish is uniform black, contrasted by an in-the-white bolt carrier.
Factory markings include "WYTWÓRNIA BRONI POPIŃSKI • ROGÓW POLAND" and the importer stamp "ATLANTIC ARMS MFG • DULUTH MN USA." WBP logos appear on the polymer handguards and pistol grip. The left side of the rear sight block is factory-engraved with the Polish eagle crest.
The pistol is configured with WBP-marked polymer handguards featuring longitudinal ribs and a WBP-marked polymer pistol grip. At the rear, a hinged adapter supports a buffer-tube-style extension with an adjustable brace and an integrated QD socket.
Sighting equipment consists of protected AK iron sights: a front post and a rear tangent sight leaf graduated 1–5. The configuration is straightforward and familiar to users of AK-pattern systems.
Chambered in 5.56mm NATO, the Mini Jack accepts Beryl-pattern magazines. Capacity is 30+1, and this example includes a WBP Beryl-pattern polymer magazine marked "BERYL WBP."