BA Forward Charging Rifle – Complete Upper Assembly

Manufactured with 100% American made parts and materials.

Looking to upgrade your AR or build a new one? Bilson Arms' Forward Charging Complete Upper Assemblies bring innovative forward charging technology to your lower without committing to a full rifle. These uppers are chambered in virtually every caliber you could want - 5.56 NATO, 300 Blackout, 350 Legend, 450 Bushmaster, 9mm, 6mm ARC, or 22 ARC - so your bases are covered whether you're hunting, competing, or just having fun.

Each upper is built around premium barrels (4150/4151 CrMoV steel for most calibers, 416R stainless for precision 6mm and 22 ARC options), with caliber-specific lengths and twist rates to maximize performance. The free-floating M-Lok handguard gives you all the mounting options you need, and each upper comes with an A2 birdcage flash hider with the appropriate thread pattern for your caliber choice.

Available Options:

• Calibers: 5.56 NATO, 300 Blackout, 350 Legend, 450 Bushmaster, 9mm, 6mm ARC, 22 ARC, 338 ARC
• Color Options: Complete Graphite Black, FDE/Graphite Black Two-Tone, Sniper Green/Grey Two-Tone, Tactical Grey/Graphite Black Two-Tone, FDE/Sniper Green Two-Tone
• Gas Block: Adjustable or Standard

Specifications:

• Barrel Material: 4150/4151 CrMoV Steel (5.56, 300 BLK, 350 Legend, 450 Bushmaster, 9mm) | 416R Stainless Steel (6mm ARC, 22 ARC)
• Barrel Length: 16" (5.56, 300 BLK, 350 Legend, 450 Bushmaster, 9mm) | 18" (6mm ARC, 22 ARC)
• Twist Rates: 1:7 (5.56, 6mm ARC) | 1:8 (300 BLK) | 1:10 (9mm) | 1:16 (350 Legend) | 1:24 (450 Bushmaster)
• Muzzle Threading: 1/2-28 (5.56, 9mm) | 5/8-24 (6mm ARC, 300 BLK, 350 Legend, 450 Bushmaster)
• Attachment: M-Lok / Picatinny

Bilson Arms Limited Lifetime Warranty included.

Custom colors available upon request. Contact us for details.