Rival Arms

Rival Arms ranked #108 of 519 brands on GunPartPicker in October 2026, just behind Q, with about 1 in every 1000 parts builders added. That's its 2nd straight month at #108. Builders reached for Rival Arms mostly for glock slide parts. The most added single part was the Rival Arms Chassis 12 deg Pistol Grip for AR-Style, Black - RA-RA92R101A, taking the top spot from the Rival Arms RA43G004A Slide Back Cover Plate Double Stack Black Anodized Aluminum for Glock 17, 19 GEN5.

Glock barrel parts were the busiest Rival Arms category in October: 4 products came back in stock, several more than once. About 44% of the 270 Rival Arms products we track are in stock today.

Also popular this month: Rival Arms RA10G104A Slide For Glock 17 Gen 4 A1 RMR Black, Rival Arms RA42G002A Slide Completion KIT 9mm Luger Black PVD Stainless Steel for Glock 43, 43X, 48, RIVAL ARMS Precision Gold PVD Threaded Drop-In Barrel for Glock 17 Gen 5 (RA20G104E) and Rival Arms RA43G004A Slide Back Cover Plate Double Stack Black Anodized Aluminum for Glock 17, 19 GEN5.

Why Rival Arms

Rival Arms is a Dallas, Texas maker of Glock slides, barrels and full slide completion kits, plus slides and barrels for SIG P320 and P365. You can get the whole slide assembly from one brand.

Slides are 17-4 PH stainless with a QPQ finish, and barrels are 416R stainless. In one build, the slide ran about $470 and a threaded 4.5 inch barrel about $236, and the finished gun ran without a malfunction, shooting 2.6 to 3 inch groups at 25 yards.

The slide fit was rough at first and smoothed out within 50 rounds. Also, rivalarms.com now forwards to a domain sale page, so support may be hard to reach. We'd buy Rival parts only from a dealer with stock and a return policy.