Details
DTT Customs "Muse" AR-15 | 16" 9mm Barrel | KeyMod Handguard | Davidson Defense Upper | ELD Performance CRYO Treated | Trinity Force
The DTT Customs "Muse" AR-15 brings together quality components for a purpose-built 9mm pistol-caliber platform. Built on a Davidson Defense forged upper receiver machined from 7075-T6 aluminum to mil-spec M16/M4 specifications with M4 feedramps, this build features an ELD Performance CRYO treated 16" barrel in 9mm with a 1:10 twist rate. The 4150 CMV contour profile barrel receives QPQ nitride treatment for enhanced durability and corrosion resistance. A Trinity Force 15" KeyMod handguard crafted from 6061-T6 aluminum provides ample mounting space and a slim profile for comfortable shooting positions, while the included muzzle brake with 1/2"x36 TPI threading directs muzzle blast forward for reduced shooter-side noise.
Key Features
- Davidson Defense Forged Upper Receiver: 7075-T6 aluminum construction, mil-spec M16/M4 specifications with M4 feedramps
- ELD Performance CRYO Treated 16" Barrel: 4150 CMV steel, 9mm chambering, 1:10 twist rate, QPQ nitride finish for wear resistance
- Trinity Force 15" KeyMod Handguard: Super slim 6061-T6 aluminum profile with KeyMod accessory mounting system
- Forward-Directing Muzzle Brake: 1/2"x36 TPI threading, nitride finish, reduces noise toward shooter
- Pistol-Caliber Platform: Designed for 9mm builds, see configuration for complete specifications
Perfect For
- Shooters building dedicated 9mm AR pistol-caliber carbines for range use or training
- Home defenders seeking a pistol-caliber platform with reduced recoil and manageable report
- Competition shooters running PCC divisions who value accuracy and control
- Enthusiasts looking for a complete upper assembly that pairs with 9mm-compatible lowers
CRYO Treated Barrel Performance
The ELD Performance barrel undergoes cryogenic treatment, a process that stress-relieves the steel at the molecular level to enhance dimensional stability and extend barrel life. Combined with QPQ nitride finishing, this 16" barrel delivers consistent accuracy and exceptional resistance to throat erosion and corrosion. The 1:10 twist rate stabilizes a wide range of 9mm projectiles, from lightweight training rounds to heavier defensive loads, making this upper versatile across multiple shooting applications.
Slim KeyMod Handguard Design
Trinity Force engineers their Professional series handguards with a super slim profile that maximizes comfort without sacrificing rigidity. The 15" length provides generous real estate for accessories like lights, lasers, and vertical grips while maintaining a sleek appearance. KeyMod slots positioned at 3, 6, and 9 o'clock allow modular attachment of rails and direct-mount accessories, giving shooters the flexibility to configure their setup for any mission or training scenario.
Mil-Spec Upper Receiver Foundation
The Davidson Defense forged upper receiver serves as a robust foundation for this build, machined to precise mil-spec dimensions for reliable compatibility with standard AR-15 components. Forged from 7075-T6 aluminum—the same material used in military-grade receivers—this upper offers superior strength-to-weight characteristics. M4 feedramps enhance reliability when feeding from 9mm magazines, ensuring smooth cycling across various ammunition types and magazine brands.
Forward-Blast Muzzle Brake
The included muzzle brake features linear compensation technology that channels gases forward and away from the shooter's position. This design reduces the concussive blast experienced at the firing line, making extended shooting sessions more comfortable and protecting shooter hearing. The 1/2"x36 TPI threading is standard for 9mm barrels, and the nitride finish matches the barrel treatment for a cohesive appearance and long-lasting protection against elements.
Follow safe handling practices and manufacturer instructions for assembly and use. Ensure compatibility with 9mm-compatible lower receivers and magazines. Verify proper headspacing and function testing before live fire. Ensure compliance with all applicable federal, state, and local laws.
