Windham Weaponry 450 Thumper 450 Bushmaster AR Pistol with Brace


Category: Product ID: 1596


With the introduction of the breakout 450 Thumper rifle from Windham Weaponry lsat year, they’ve decided to build upon the success with the 450 Thumper pistol. This big bore pistol is chambered for the massive .450 caliber cartridge, and is fitted with an SB Tactical Pistol Arm Brace. The 9″ medium profile barrel features a Melonite QPQ finish and an A2 flash suppressor.

Firearm Specifications

  • Model: RP9SFS-450M
  • Caliber: .450 Bushmaster
  • Type: Pistol
  • Action: Semi-Automatic Gas Impingement System
  • Capacity: 5 + 1 – Ships with one 5 Round Magazine
  • Safety: Manual Lever with Indicator Markings on Both Sides of Receiver
  • Receiver: Flat Top Upper Receiver / Magpul Enhanced Trigger Guard in Lower
  • Receiver Material: Forged 7075 T6 Aircraft Aluminum with Aluminum Trigger Guard
  • Receiver Finish: Hardcoat Black Anodize Finish with Laser Caliber Identification
  • Bolt Material: Carpenter 158 Steel
  • Barrel: 9” Medium Profile Melonite QPQ Finish with A2 Flash Suppressor
  • Barrel Material: 4150 Chrome Moly Vanadium 11595E Steel w. M4 Feed Ramps
  • Rifling: 1 Turn in 24″ – Right Hand Twist
  • Receiver Tube: Fitted with SB Tactical Pistol Arm Brace – Includes a Q.D. Endplate and Q.D. sling swivel
  • Forend: 7″ Windham Weaponry Free-Float Railed Handguard
  • Pistol Grip: Hogue Beavertail Pistol Grip
  • Rear Sight: Kriss Polymer Rear Flip Sight
  • Front Sight: Kriss Polymer Front Flip Sight
  • Packaging: Hard Plastic Gun Case with Operators Manual


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