Panzer Arms M4 Speed Pro Disruptive Grey 12 Gauge Shotgun The Panzer Arms M4 Speed Pro Disruptive Grey is a 12 gauge semi-automatic shotgun with an 18.5-inch barrel and ARGO piston-driven operation. A fixed skeleton stock and metal handguard define the configuration, while Disruptive Grey Cerakote provides the exterior finish. This version brings together a specified barrel length, a named operating system and an identifiable stock configuration. It is a focused choice for buyers seeking the M4 Speed Pro with a fixed skeleton stock rather than choosing by the M4 family name alone. Shop the M4 Speed Pro Disruptive Grey at BattleHawk Armory. 18.5-inch Barrel and ARGO Operation The barrel measures 18.5 inches, and the shotgun uses ARGO piston-driven semi-automatic operation. The gas-piston system supports the self-loading action. These are distinct technical features of this exact configuration, separate from its finish and furniture. Fixed Skeleton Stock and Metal Handguard The stock is a fixed skeleton design, paired with a metal handguard. Fixed identifies the stock configuration without suggesting that it folds or telescopes. Choose additional accessories based on the exact firearm and available mounting interfaces. Disruptive Grey Cerakote Disruptive Grey Cerakote provides the named exterior treatment. The grey finish is a neutral visual choice, while the metal handguard and skeleton stock give the firearm its distinctive profile. Product Specifications Brand: Panzer Arms Model: M4 SPEED PRO UPC: 869325000641 SKU: PAM4CSDGMFSS Product Type: Shotgun Gauge: 12 Gauge Barrel Length: 18.5 inches Action: Semi-automatic Operating System: ARGO piston driven Finish: Disruptive Grey Cerakote Stock: Fixed skeleton Handguard: Metal Frequently Asked Questions What is the barrel length? This M4 Speed Pro has an 18.5-inch barrel. Which operating system is used? It uses ARGO piston-driven semi-automatic operation. Does the stock fold? This exact version is identified with a fixed skeleton stock; a folding stock is not part of the stated configuration. What is the finish? The finish is Disruptive Grey Cerakote. What type of handguard is fitted? This version has a metal handguard. Purchase the M4 Speed Pro Disruptive Grey at BattleHawk Armory. Explore Panzer Arms at BattleHawk Armory for more from the brand.