The Grey Ghost Precision 300 Blackout 16" Complete upper is exactly what you need to build your next hunting or defensive rifle using the 300 Blackout caliber. This complete upper uses the same quality parts offered in complete GGP rifles. Now you can convert your existing GGP AR15 to use 300 blackout or finish your next build with a accurate 300blk upper!

Features :

• GGP MKII 7075-T651 Billet Upper Receiver
• ,GGP MKII 15" M-LOK handguard,
• True Black Type III Class 2 Mil Spec hard coat anodize
• "16" 300blk barrel, 1x10 twist, 5/8x24 threaded muzzle,
• Carbine length Gas
• GGP 30 cal Muzzle Brake
• Low-Profile Gas Block
• Bolt Carrier Group is Black Nitrided and MP/MPI tested
• Battle Arms Development RACK AR-15 Charging Handle