Davidson Defense Sarissa 16-inch Pistol-Gas 1:8 .300 Blackout AR-15 Freefloat M-Lok Handguard Rifle Full Build Kit, Witt Machine .30 cal Suppressor

Sarissa 16-inch .300 Blackout AR-15 Full Build Kit w/Witt Machine The Dirty .30 Suppressor

The Sarissa is a Full Build Kit built around a 16-inch Davidson Defense barrel chambered in .300 Blackout, with an HBAR heavy profile finished in phosphate. It's paired with a 7075-T6 aluminum upper receiver finished in anodizing. It pairs a 15-inch Series A M-LOK Slant-Pro handguard with a Witt Machine The Dirty .30 compact suppressor at the muzzle, running on a pistol-length gas system. A complete bolt carrier group, Mil-Spec charging handle, complete Lower Parts Kit, carbine buffer-system components, and a Special Operations stock round out the rest of the rifle. The lower receiver is not included, leaving the buyer to select and supply that component separately.

Key Features

• Davidson Defense 16-inch .300 Blackout barrel, 1:8 twist, HBAR profile, phosphate finish
• Pistol-length gas system with premium adjustable low-profile gas block
• 7075-T6 aluminum upper receiver, anodized finish
• Series A M-LOK Slant-Pro 15-inch handguard with quad-rail front and built-in QD mounts
• Witt Machine The Dirty .30 compact suppressor included
• Special Operations AR-15 stock
• Complete Mil-Spec Lower Parts Kit and carbine buffer-system components included
• Lower receiver is not included.

Barrel and Gas System

The Davidson Defense barrel runs 16 inches long, chambered in .300 Blackout and finished in phosphate with an HBAR heavy profile. It carries a 1:8 twist rate. Gas cycles back to the action through a pistol-length system, running a pistol-length gas tube and a premium low-profile adjustable gas block sized to a .750-inch journal.

Upper Receiver and Handguard

The upper receiver is machined from 7075-T6 aluminum and finished in anodizing, cut with M4 feed ramps for smooth feeding and fitted with an AR-15 forward assist assembly. The ejection port carries a standard .223/5.56 door assembly. Over the barrel sits a 15-inch Series A M-LOK Slant-Pro handguard, featuring built-in QD mounts, a flat top, a quad-rail front section, anti-rotation tabs, and oblong cutouts along its length.

Suppressor

Mounted at the muzzle is a Witt Machine The Dirty .30 compact suppressor, rated for .30 caliber and machined from 416 stainless steel with a graphite black Cerakote finish. It measures 4 inches long and threads onto the barrel's 5/8x24 pattern.

Bolt Carrier Group and Charging Handle

A complete AR-15 bolt carrier group is included, made in the USA and listed for use across 5.56 NATO, .223 Remington, .300 Blackout, and .350 Legend. That broader listing describes the BCG itself; the barrel and chambering on this build remain .300 Blackout. A Mil-Spec AR-15 M4 charging handle rounds out the upper's operating components.

Lower Parts Kit and Buffer System

A complete Mil-Spec AR-15 Lower Parts Kit covers the fire-control and lower-control internals needed once a lower receiver is on hand. Behind it sits a Mil-Spec heavy-duty six-position buffer tube, holding a standard AR-15 carbine buffer weighing 3 ounces and a standard USA-made recoil spring. An AR-15 carbine castle nut and Mil-Spec AR-15/M16 receiver end plate secure the buffer tube assembly to the lower.

Stock

Capping off the rifle is a Special Operations AR-15 stock. It slides onto the six-position buffer tube included with this kit, giving the shooter adjustable length-of-pull for the final piece of the build.

Follow all manufacturer instructions and safe handling practices.

Ensure compliance with all applicable federal, state, and local laws.

Lower receiver is not included.

Verify caliber and mounting-system compatibility before use.

Confirm secure attachment and inspect the suppressor before each use.

May Dropship from Davidson Defense.