WBP Poland Jack 762SC Classic 7.62x39 AKM Semi-Auto Rifle, 16.3 in CHF Chrome-Lined Barrel, RS Regulate Mount, JMAC Brake, PSA Treebark M-LOK Handguard
This Polish-built WBP Jack 762SC Classic is an AKM-pattern, 7.62x39 semi-automatic rifle outfitted with quality upgrades and clean, verifiable features. It pairs a cold hammer forged, chrome-lined 16.3 inch barrel and 45° gas block with a factory left-side optic rail and an installed RS Regulate AK-302M mount. Notable additions include a JMAC muzzle brake, PSA Treebark sharkfin laminated lower handguard with M-LOK, and a TangoDown textured polymer pistol grip, complemented by a laser-engraved Polish eagle crest on the rear sight block.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore 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 minor, superficial scratches and blemishes present.
What's Included
- Two-point web sling (installed)
- RS Regulate AK-302M side-rail mount (installed)
- NcSTAR AK/SKS front sight adjustment tool (packaged)
- 2x 30-round magazines (mixed: waffle-pattern polymer and ribbed metal)
Built by WBP in Poland on an AKM-pattern stamped receiver with magazine-well dimples and a smooth top cover, this Jack 762SC Classic retains hallmark features such as an open-ear front sight base with bayonet lug and a retained cleaning rod. The 16.3 inch barrel is cold hammer forged, chrome-lined, and threaded 14x1 mm left-hand, and it wears a JMAC muzzle brake.
The rifle uses a traditional AK sighting arrangement with a front post and an adjustable tangent rear sight graduated 1–10 with an "S" battle notch. A left-side Warsaw Pact optic side rail is present, and an RS Regulate AK-302M side-rail mount is installed, which preserves field-stripping access.
Furniture highlights include the PSA Treebark "sharkfin" laminated lower handguard with M-LOK slots paired to a polymer upper handguard. A fixed polymer stock provides a 13.0 inch length of pull, and the TangoDown textured polymer pistol grip offers a secure hold.
Markings and provenance are clear, with Wytwórnia Broni Popiński – Rogów, Poland and Atlantic Arms MFG – Duluth, MN import information, plus a laser-engraved Polish eagle crest on the rear sight block. The rifle accepts standard AK-pattern magazines, with a maximum capacity of 30+1.