The Battle Arms Development Xiphos 9P 5.25-inch pistol in 9mm is the shortest-barreled version of the company’s blowback AR-style pistol, built to take Glock magazines (brand part no. XIPHOS005). It uses a billet BAD-GS 7075-T6 aluminum receiver and a 4-inch Workhorse free-float handguard with M-LOK slots and a Picatinny top rail. A Gearheadworks Tailhook Mod 2 pistol brace and a Combat Gray finish complete the build. The short barrel and handguard make it one of the most compact pistol-caliber ARs in the line. It fits a shooter who wants something handy for a vehicle, a range bag or a home-defense closet.

Key Specifications

• The chambering is 9mm, an inexpensive round that suits long range sessions.
• The barrel is a 5.25-inch 41V50 steel barrel in a lightweight profile with black nitride, which keeps the front end light and the finish durable.
• The twist rate is 1:10, a good match for the usual range of 9mm bullet weights.
• The action is blowback, so there is no gas tube or piston to clean.
• The receivers are billet 7075-T6 aluminum in a lightweight profile, with a lower built for Glock small-frame 9mm magazines.
• The handguard is a 4-inch Workhorse free-float M-LOK rail with a Picatinny rail on top, short enough to keep the pistol compact.
• The brace is a Gearheadworks Tailhook Mod 2 pistol brace on a mil-spec six-position carbine receiver extension.
• The muzzle device is an A2 flash hider on a 1/2×36 thread, the standard 9mm AR pattern.
• The bolt carrier group is an 8620 steel black nitride 9mm unit, chosen for reliability and easy cleaning.
• The finish is Combat Gray, a custom color that sets it apart from black builds.

Frequently Asked Questions

How does the 5.25-inch Xiphos 9P differ from the 8-inch model? The 5.25-inch model uses a shorter barrel and a 4-inch handguard in place of the 7.5-inch Workhorse, which makes it the more compact of the two. The receiver, brace and finish are shared.

Which magazines does it use? It takes Glock magazines, and the maker lists a 33-round KCI magazine with the pistol.

Does it come with a brace? Yes. The maker lists a Gearheadworks Tailhook Mod 2 pistol brace on a mil-spec six-position carbine receiver extension.

Buy the Battle Arms Development Xiphos 9P Pistol, 9mm, 5.25-Inch Barrel, Combat Gray

Short pistol-caliber ARs only work when the parts are matched to the cartridge. This Xiphos pairs a blowback bolt, a 9mm-specific buffer and a lightweight barrel around a billet receiver, so the compact size does not cost reliability. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more AR pistols before you check out.