Caliber: 5.56mm NATO/223. Similar to Volunteer XV except has gas block with integral Picatinny-style rail, B5 SOPMOD stock, and upright B5 grip. Mid-length gas system, 15” aluminum S&W M-LOK forend. Primary Weapons Systems muzzle brake, and 5R rifling. Sights: WGS Tactical Folding Sight front and rear. 16” target crowned, threaded barrel (No. 13515) or 14.5” (No. 13516), the latter with a with a pinned flash hider. Weight: 6.8 lbs. Length: 36.75”. Introduced 2022. XV Pro M-LOK 6mm ARC (No. 13518) has 20”. barrel. Overall Length: 37.5”-40.75”. Weight: 7.8 lbs. Introduced 2023. SEE POLITICAL PANIC PRICING.