PRODUCT DESCRIPTION PRODUCT SPECIFICATIONS DB10 8.6BLK DUO 12" BRACE Manufacturer: Diamondback Firearms Finish: Black/ODG Rate of Twist: 1-in-3" UPC: 810035756311 Thread Pattern: 5/8x24 Barrel Length: 12" Color: Collapsible / Folding Stock Magpul BTR Brace Action: Semi-Auto Capacity: 20 + 1 Caliber: 8.6 Blackout Model: DB10