Davidson Defense Echoless 4.5-inch 22 AR-15 Freefloat M-Lok Handguard Pistol Complete Upper Build, Davidson Defense Teardrop Suppressor

Echoless 4.5-inch .22 LR AR-15 Complete Upper w/Davidson Defense Teardrop Suppressor

The Echoless is built around a 4.5-inch dedicated .22 LR barrel with a pencil profile, paired with a forged slick-side AR-15/AR-9 upper receiver finished in black anodizing. It pairs a 7-inch M-LOK and Picatinny Slant-Pro free-float handguard with a Davidson Defense Teardrop rimfire suppressor at the muzzle. A dedicated stainless steel .22 LR bolt group and Mil-Spec charging handle round out the upper, giving the buyer everything needed on the upper side.

Key Features

• 4.5-inch dedicated .22 LR barrel, pencil profile
• Forged slick-side AR-15/AR-9 upper receiver, black anodized finish
• 7-inch M-LOK and Picatinny Slant-Pro free-float handguard
• Davidson Defense Teardrop K-baffle rimfire suppressor included
• Dedicated stainless steel .22 LR bolt group included
• Mil-Spec AR-15 M4 charging handle included

Barrel and Suppressor

The barrel runs 4.5 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 rated for .22 LR and machined from 6061-T6 aircraft-grade aluminum, finished in black anodizing across the tube and end caps. 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 a forged, slick-side unit built for the AR-15/AR-9 platform and finished in black anodizing. Over the barrel sits a 7-inch handguard using an M-LOK and Picatinny Slant-Pro free-float design, featuring built-in QD sling mounts, anti-rotation tabs, and oblong lightening cuts, finished in black.

Bolt Group and Charging Handle

The bolt group is a dedicated .22 LR unit machined from stainless steel, built specifically for this rimfire chambering rather than shared with centerfire calibers. A Mil-Spec AR-15 M4 charging handle rounds out the upper's operating components.

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.