Davidson Defense Aegis 14.5-inch Carbine-Gas 1:7 556 AR-15 Freefloat M-Lok Handguard Pistol Complete Upper Build, DTT Plan B Bartizan Muzzle Brake

Aegis 14.5-inch Carbine Complete Upper with Plan B Bartizan Muzzle Brake

This complete AR-15 upper combines a 14.5-inch 4150 CrMoV barrel with a free-float M-Lok handguard, adjustable gas block, and DTT Plan B Bartizan muzzle brake for reliable 5.56 NATO performance. The upper receiver is 7075-T6 aluminum with M4 feed ramps, paired with a nitride-finished bolt carrier group and mil-spec charging handle.

Key Features

• 14.5-inch 4150 CrMoV barrel with 1:7 twist rate and phosphate finish
• Free-float 12-inch M-Lok handguard in 6061-T6 aluminum
• Low-profile adjustable carbine-length gas block for tuning
• DTT Plan B Bartizan muzzle brake with modular suppressor mounting ecosystem
• Complete bolt carrier group and charging handle included
• 7075-T6 anodized upper receiver with M4 feed ramps

Perfect For

• Shooters building mid-length carbine configurations
• 5.56 NATO precision and reliability focused builds
• Modular suppressor-ready AR-15 platforms
• Tactical and training applications

Adjustable Gas System Flexibility

The low-profile adjustable gas block allows you to tune cycling for your ammunition and configuration. This carbine-length system balances reliability with controllable recoil across standard 5.56 NATO loads. The adjustment capability makes this upper adaptable to different barrel lengths and shooting conditions without additional parts swaps.

Plan B Bartizan Muzzle Brake Integration

The DTT Plan B Bartizan muzzle brake supports the modular. Plan B suppressor ecosystem. This design enables quick-change suppressor mounting while maintaining the flexibility to swap muzzle devices as needed. The. Plan B platform gives you configuration options without requiring permanent installation or additional adapters.

Free-Float Precision Platform

The free-float M-Lok handguard isolates the barrel from pressure points, supporting consistent accuracy. The 12-inch length provides ample rail space for optics, lights, and accessories while keeping the platform compact. M-Lok mounting slots accept standard tactical components without rail panel requirements.

Complete Upper Build Ready

This upper includes the bolt carrier group, charging handle, and forward assist assembly. The 9310 alloy steel bolt carrier is nitride-finished for durability. No additional receiver components are required beyond a compatible lower receiver to complete your rifle.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. BCG and charging handle are included with this complete upper. Verify suppressor compatibility before mounting any muzzle device.