This is a CMMG Stabilizing Brace known as the RipBrace, model 55CA9F7.
This is the full size (carbine) version of their RipBrace. It is a revolutionary" retractable pistol brace engineered for lightning-fast deployment to your personal setting. With their Fastback Technology" you simply pull straight back to extend the brace. No locking tabs to bind. P3 Technology (Personal Position Preset) allows you to adjust the indexing screw and to set your own preset.
Features:
Black finish
Compact stabilizing brace
Receiver extension & brace kit w/standard RipBrace 6-position tube screw spring buffer sling plate nut
