PRO2A 10.5" 400 Legend 1/16 Pistol Length Melonite M-LOK AR-15 Upper

Product Description

Pack immense straight-wall knockdown power into a highly maneuverable, compact package. The PRO2A 10.5" 400 Legend Pistol Length Melonite M-LOK Upper Assembly strikes the perfect balance between ballistic velocity retention and tight-quarters portability. Specially engineered to handle the unique case geometry and pressure matrix of straight-walled hunting rounds, this upper is ideal for custom pistol configurations or NFA short-barrel rifle tracking builds. Constructed around a premium forged 7075-T6 aluminum receiver with feed geometry optimized for thick straight-wall ammunition body cycling, it features a 10.5-inch 4150 CMV barrel. The stable 1:16 twist rate keeps heavy hunting projectiles stable over short distances, delivering incredible kinetic energy transitions out to medium ranges. Operating on a tuned pistol-length direct impingement gas cycle, this upper drops directly onto your standard AR-15 lower receiver setup, providing a turn-key solution for brush hunting, close-range hog tracking, or heavy defense setups.

Key Features

• Balanced 10.5" Design: Delivers extreme maneuverability in tight brush environments or close quarters while maintaining superior velocity metrics over shorter barrel variants.
• High-Impact 400 Legend Caliber: Custom chambered to deploy Winchester's straight-wall platform, providing heavy energy signatures from a highly portable configuration.
• Specialized Straight-Wall Feed Optimization: Receiver feed contours are structured explicitly to prevent standard feeding hiccups associated with thick straight-walled ammunition.
• Free-Float Slim M-LOK Rails: Rugged aluminum free-float handguard system isolates the barrel profile from hand pressure to protect inherent mechanical consistency.
• Liquid Bath Nitride Finish: Full interior and exterior QPQ Melonite barrel treatment ensures maximum lifecycle defense against severe friction, heat wear, and harsh environmental moisture.

Why Choose This Product?

Shorter barrels often introduce pressure variations and strict cycling parameters when adapting straight-wall platforms to compact frames. Pro2A Tactical resolves this directly. By matching an expertly structured single-feed ramp receiver setup with a precision 10.5-inch Melonite barrel and a properly tuned gas profile, this upper drops right onto your lower receiver to supply heavy energy impact, space-saving maneuverability, and field reliability proudly built in the USA.