Daniel Defense M4A1, Mil Spec Brown cal. 5.56

The Daniel Defense M4A1 rifle is used by the US Special Operations Command (SOCOM)

Daniel Defense semi-automatic rifle.

Front end with 4 Picatinny rails for complete adaptability

Pinned muzzle brake, not compatible with the original A2 type.

2.72 kg without sights

Caliber 5.56mm NATO (.223 Remington)

Barrel length 14.5 inches (37cm)

Twist rate 1:7

Brown anodized Cerakote finish

Supplied with a 10-round magazine

Supplied in a polymer case

Made in USA

The M4A1 semi-automatic rifle is the civilian version of the famous - M4A1 RIS II - used by the US Special Operations Command (SOCOM) since 2005. It has a cold hammer-forged barrel, giving it extraordinary accuracy. Daniel Defense is the only AR-15 manufacturer to use this process.

The M4A1 Mil-Spec stands out from other M4A1 models with its Mil Spec + Cerakote finish.

LOWER RECEIVER: CNC-machined 7075-T6 Mil-Spec aluminum receiver with Type III Hard Coat Anodized finish. The magazine well is flared and improved for faster reloading. Heavy Duty quick-detach sling swivel inserts (available from SIMAC ref: DDZ002)

UPPER RECEIVER: Mil-Spec with optical and accessory position markings. M4 feed ramp. CNC-machined 7075-T6 aluminum, Type III hard anodized

BARREL: Chrome-moly vanadium steel, cold hammer-forged. Twist rate 1:7, barrel length 14.5″ (36.83cm), M4 profile, chrome-lined and Mil-Spec phosphate finish, magnetic particle inspection (crack-detection quality control using magnetic resonance imaging), tested with high-pressure cartridges

Direct gas impingement system, 4140 hardened steel CNC-machined gas block, hardened Mil-Spec phosphate finish, Carbine Length (7" long, or 17.78 cm)

Pinned and staked Daniel Defense-style flash hider muzzle brake in 17-4 PH stainless steel with sodium nitrate surface treatment. 1⁄2×28 thread

M4A1 RIS II-style handguard - Rail Interface System (multi-rail platform) in 6061-T6 aluminum.

Bolt carrier assembly: M16 profile, Mil-Spec with magnetic particle inspection, chrome finish, gas key with staked nuts

Rails covered with Santoprène® (a vulcanized thermoplastic polyolefin elastomer that combines the qualities of rubber with the ease of machining thermoplastic materials), heat-resistant up to 150°C

Mil-Spec + Cerakote finish