Davidson Defense Holdfast 9-inch .22 LR AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit, Teardrop .22LR Suppressor

Holdfast 9-inch .22 LR AR-15 Upper Build Kit w/Teardrop Suppressor

The Holdfast is built around a 9-inch dedicated .22 LR barrel with a pencil profile, paired with a 7075-T6 aluminum upper receiver finished in Type III hardcoat anodizing. It pairs a 10-inch free-float M-LOK handguard with a Davidson Defense Teardrop rimfire suppressor at the muzzle. BCG and charging handle are not included, leaving the buyer to supply those components separately.

Key Features

• 9-inch dedicated .22 LR barrel, pencil profile
• 7075-T6 aluminum upper receiver, Type III hardcoat anodized
• 10-inch free-float M-LOK handguard, quad-rail front section
• Davidson Defense Teardrop K-baffle rimfire suppressor included
• BCG and charging handle are not included.

Barrel and Suppressor

The barrel runs 9 inches long, built specifically for .22 LR in a pencil profile rather than a heavier contour, with a 1/2x28 muzzle thread. Mounted at the muzzle is a Davidson Defense Teardrop suppressor, a K-baffle rimfire design machined from 6061-T6 aircraft-grade aluminum and finished in black anodizing. It measures 5.75 inches long and 1 inch in diameter, weighing 3.4 ounces, and threads onto the barrel's 1/2x28 pattern.

Upper Receiver and Handguard

The upper receiver is machined from 7075-T6 aluminum and finished in Type III hardcoat anodizing, cut with M4 feed ramps for smooth feeding and fitted with a forward assist. The ejection port carries a standard .223/5.56 door with its rod and spring installed. Over the barrel sits a 10-inch free-float handguard, featuring a quad-rail front section, front and rear QD sling mounts, a slanted front, and anti-rotation tabs.

Follow all manufacturer instructions and safe handling practices.

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

Verify caliber and mounting-system compatibility before use.

Confirm secure attachment and inspect the suppressor before each use.

May Dropship from Davidson Defense.

BCG and charging handle are not included.