JP Enterprises MBRG-13 AR-9 9mm Carbine, 16.5" Threaded Barrel, Glock-Mag Compatible, Matte Black — Excellent
This JP Enterprises MBRG-13 is a purpose-built AR-9 carbine that pairs Glock-pattern magazine compatibility with JP's precision build quality. It features a 16.5" threaded barrel with a multi-port three-chamber brake, a straight-blowback action, and a free-float handguard with a finned alloy heat-sink sleeve. Marked with JP Enterprises Hugo MN and model MBRG-13, this U.S.-made carbine comes in excellent condition with a clean, mirror-finish bore.
The dedicated straight magwell is designed for Glock double-stack 9mm magazines and this example includes a standard OEM Glock extended magazine with a Taran Tactical +10 adapter for a 41+1 capacity. The EXOS Defense adjustable carbine stock, textured polymer pistol grip with finger grooves, and matte black aluminum receivers and handguard deliver a clean, functional setup. A flat-top upper rail, forward assist, case deflector, and a JP-logo 9mm-marked ejection-port cover round out the package.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Details: There are very few signs of prior use. The bore is clean and shiny.
What’s Included
- Bulldog black soft rifle case
- JP Enterprises manual/booklet
- 1x 41-round standard OEM Glock extended 9mm double-stack magazine with Taran Tactical +10 adapter
The MBRG-13 runs a straight-blowback 9mm system and a dedicated straight magwell optimized for Glock-pattern double-stack magazines. It is marked "9mm" on the ejection-port cover alongside the JP logo, with receiver markings for JP Enterprises Hugo MN and the model designation MBRG-13.
Its 16.5" threaded barrel is fitted with a multi-port three-chamber brake/compensator. The setup is complemented by a free-float round tube handguard with longitudinal vents, a sling stud, and a finned alloy sleeve/heat sink visible at the rear of the handguard.
Controls and receiver features include a manual safety selector, forward assist, and case deflector. The upper features a flat-top rail for mounting as needed. The receivers are aluminum with a uniform matte black finish.
Ergonomics are addressed with an EXOS Defense adjustable carbine stock and a textured polymer pistol grip with finger grooves. The rifle’s overall configuration supports the stated 41+1 capacity and Glock magazine compatibility while maintaining JP’s clean, performance-focused aesthetic.
Made in the USA, this AR-9 carbine combines JP Enterprises manufacturing with thoughtful details and markings specific to the MBRG-13 series.