Radical Firearms RPR 5.56 NATO – 30+1, 10.5" Threaded Barrel, M-LOK FP105556M410RPRBTR

The Radical Firearms RPR (Model FP105556M410RPRBTR) is a compact, hard-hitting 5.56 NATO carbine built for maneuverability and modularity. Chambered in 5.56x45mm NATO with a 30+1 capacity, the RPR features a 10.50-inch black Melonite threaded barrel ready for muzzle devices or suppressors (where legal). A free-float M-LOK handguard gives you abundant mounting options for lights, grips, and offsets, while the black hard-anodized aluminum receiver with full-length Picatinny rail accepts optics and backup sights with rock-solid stability.

Designed for shooters who want a short, agile platform without sacrificing accessory compatibility or reliability, the RPR ships with a comfortable black polymer stock and ergonomic black polymer grip for confident handling in rapid-fire scenarios. Ideal for close-quarters training, duty use, and high-tempo range work, the Radical Firearms RPR balances toughness and modularity in a compact package. Always verify local regulations regarding barrel length, SBR paperwork, and suppressor legality before installation or use.

• Manufacturer / Model: Radical Firearms — RPR (FP105556M410RPRBTR)
• Caliber: 5.56x45mm NATO
• Capacity: 30+1 rounds
• Barrel: 10.50" black Melonite threaded barrel
• Handguard: Free-float M-LOK handguard
• Receiver: Black hard-anodized aluminum receiver with full-length Picatinny rail
• Stock / Grip: Black polymer stock and ergonomic black polymer grip
• Purpose: Compact, lightweight carbine for range, duty, and short-range tactical applications