AR-556 MPR 450BM BLK 18.6" 5RD 8522 | MAGPUL FURNITURE Manufacturer Model Number: 8522 Manufacturer: Ruger Model: AR-556 MPR Caliber: 450 Bushmaster Type: Rifle Item Type: Firearm Firearm / Accessory Action: Semi-Auto Firearm / Accessory Capacity: 5 + 1 Finish: Hard Coat Anodized Sights: No Sights Stock Frame Grips: Collapsible / Folding Stock Six-Position Telescoping Magazine Quantity and Description: 1 5 rd. Metal Box Mag Overall Length: 35.6" - 38.9" Weight: 7.4 lbs. Shipping Weight: 9.6 Feature: 15" Free Float M-LOK Handguard Feature: Ruger Elite 452 AR-Trigger Feature: Ergonomic MAGPUL Furniture Optic Adjustable Objective: false Optic Reticle Illuminated: false