Adding to their extensive pistol buffer tube line, Phase 5 has released the Hex-2 Pistol Buffer Tube specifically for the Sig pistol brace. The Hex-2 builds off the aesthetic base that characterized the HexOne, opting for machined scallops instead of the round tube common to other offerings. The scallops blend fluidly with the lines of the Sig brace.
Phase 5 states they worked with Sig Sauer directly with other feedback from “firearms instructors, law enforcement professionals and AR Pistol enthusiasts alike.” The Hex-2 is machined directly from 7075 T7 billet aluminum and includes an anti-tilt extension for those using piston-driven uppers. The tube is designed to use standard carbine springs and buffers.
The basic Hex-2 package is available directly from Phase 5 for $59.95. It includes the tube, end plate, nut, pistol foam pad, and the billet SB15-AP (accessory plug) brace cap . A complete buffer tube kit with spring and buffer is also available for $79.95.