DPMS DP-15 Kitty Kat 7.5″ .300 AAC Blackout Pistol

About this product

The DPMS DP-15 Kitty Kat 7.5″ .300 AAC Blackout Pistol is a purpose-built short-barreled AR-platform firearm designed for optimized performance with subsonic ammunition and suppressors in close-quarters configurations. This is not a rifle, but a pistol classified under the National Firearms Act due to its 7.5-inch barrel and pistol brace, requiring no Form 4 tax stamp unless converted to a vertical foregrip or stock setup. The .300 Blackout cartridge, specifically engineered for short barrels, maintains terminal ballistics from this 7.5-inch platform that would require nearly double the barrel length in a 5.56mm NATO chambering.

What is the DPMS DP-15 Kitty Kat used for?

This pistol is engineered for two primary roles: as a compact, truck or backpack firearm for defensive use by trained civilians under 100 yards, and as a dedicated host for a .30-caliber suppressor with subsonic ammunition. The combination of the pistol-length gas system and 1:8 twist barrel stabilizes heavy subsonic rounds (up to 220 grains) while cycling reliably with both supersonic defensive loads, making it a versatile tool for hunters in dense brush or for home defense scenarios where over-penetration through walls is a critical concern. Its 30+1 capacity and 16.2-inch overall length offer magazine-fed firepower in a package shorter than many lever-action carbines.

How does the DPMS DP-15 compare to a converted AR pistol in 5.56?

The Kitty Kat is demonstrably more effective in short-barrel applications than a 5.56mm AR pistol of the same 7.5-inch length. While a 5.56mm round loses nearly 40% of its muzzle energy from a 7.5-inch barrel compared to a 16-inch carbine, the .300 Blackout loses only about 15% in the same comparison, making the Kitty Kat's 115-grain supersonic round deliver approximately 1,200 ft-lbs of energy at the muzzle versus a 5.56mm's 800 ft-lbs. The C7 carry-handle upper also provides immediate fixed iron sights—a distinct advantage over the flat-top uppers common on most entry-level AR pistols like those from PSA, saving you $150-$200 on backup sights before you even load a magazine.

What does the DPMS DP-15 Kitty Kat weigh and what are the dimensions?

This pistol weighs 6.1 pounds unloaded, with dimensions of 16.2 inches in overall length (collapsed brace), 7.25 inches in height (magazine inserted), and 2.1 inches in width at the receiver. The 7.5-inch heavy-profile barrel contributes 1.8 pounds to that total weight, providing the thermal mass needed for sustained strings of fire without the point-of-impact shift common in pencil-profile barrels. Compare this to my Stevens 334 in .308 Win, which is nearly a foot longer and over two pounds heavier, yet has a similar effective range for medium game when using appropriate ammunition.

Who is the DPMS DP-15 Kitty Kat NOT for?

Do not purchase this firearm if you primarily shoot unsuppressed at ranges beyond 150 yards, or if you cannot secure a steady supply of .300 Blackout ammunition, which costs approximately $0.85-$1.10 per round for quality brass-cased loads—nearly double the cost of 5.56mm. The pistol-length gas system can be over-gassed with certain supersonic loads, leading to increased recoil impulse and faster parts wear, requiring an adjustable gas block for optimal tuning with a suppressor. Beginners unfamiliar with AR-platform maintenance should consider the simpler direct-impingement systems on full-length rifles, or the more traditional manual of arms found in our Stevens 555 shotguns.

What's in the box with the DPMS DP-15 Kitty Kat?

The kit includes the complete pistol, one DPMS 30-round aluminum magazine with Teflon coating, a DPMS CAR-style adjustable pistol brace installed on the receiver extension, an A2 flash hider timed and torqued to 15-20 ft-lbs, and basic owner's documentation—no hard case, cleaning kit, or additional accessories are provided. The magazine alone represents a $20 value, and the installed brace is a $120 component if purchased separately, making the out-of-box readiness notable for a firearm at this price point. You'll need to supply your own .300 Blackout ammunition, eye and ear protection, and a secure storage solution before heading to the range.

Is the DPMS DP-15 Kitty Kat worth it at $700.99?

At $700.99, this pistol represents competent value for a factory-built .300 Blackout platform with forged receivers and a functional brace system, coming in approximately $150-$200 less than a comparable build using aftermarket parts of similar quality. The inclusion of the C7 upper with fixed sights saves immediate additional expense, and the chrome-moly vanadium barrel should provide a 10,000-round service life with proper maintenance. However, budget an additional $100-$150 for an enhanced trigger group to replace the gritty 8-pound Mil-Spec unit, and another $50 for a quality single-point sling to properly manage the 6.1-pound weight during movement drills.