SHOT Show 2018: Windham Weaponry .450 Thumper Pistol

by
posted on January 31, 2018
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
winham_lede_450-pistol_white_01s.jpg

Have you been feeling a little blue because you haven't been able to find a semi-automatic handgun chambered for straight-walled, big-bore cartridges like the .450 Bushmaster? Well, cheer up friend! Windham Weaponry has just what you're looking for.

The new .450 Thumper pistol (RP9SFS-450M) features a forged 7075 T6 aircraft aluminum flat-top upper receiver paired with a Magpul enhanced trigger guard lower receiver, both of which are treated with a hardcoat black anodize finish. The 9” long medium-profile barrel is made of 4150 chrome-moly steel, sports a Melonite QPQ finish and has an M4-style feed ramp. The threaded muzzle is fitted with a much needed 3-chamber muzzle brake to tame felt recoil. The 7" long free float 6063 aluminum handguard has M-LOK accessory and QD sling attachment points. The end plate features a QD socket with a sling swivel provided.

This gun ships with a set of Kriss polymer flip-up sights. The smooth, pistol-style buffer tube is fitted with an SB Tactical wrist brace. Other features include a Hogue over-molded pistol grip, one five-round magazine and a hard side storage case. Suggested retail for the .450 Thumper is $1,254.

Latest

H&K G36 .22 LR
H&K G36 .22 LR

Review: Heckler & Koch G36 .22 LR

What was once a service rifle for a brave new world all those wasted years ago is now running free as a rimfire option for armed citizens.

Steyr's At Series Handguns: All-Metal & Modular

Designed as a collaboration between Steyr Arms and Arex Defense, the At series of handguns are built on metal frames and have several user-customizable features not seen in other offerings.

The Armed Citizen® March 16, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Teddy Roosevelt Library to Display His Famed A.H. Fox Shotgun

The A.H. Fox F. Grade shotgun that accompanied Roosevelt on his 1909-1910 African safari, and later during his Amazon River expedition, will be on display when the Theodore Roosevelt Presidential Library opens on July 4, 2026.

CZ to Supply Pistols to the German Army

The Bundeswehr has selected a CZ pistol as its new standard-issue sidearm, a move the gun company hails as one of its most significant milestones.

The Lever Action Supreme Rifle: Henry's 21st Century Lever Gun

The Henry Lever Action Supreme Rifle (LASR) is a step away from the company’s traditional-styled lever-actions, providing a number of features that carry the lever gun into the 21st century.

Interests



Get the best of American Rifleman delivered to your inbox.