DD M4A1 UPPER URG 14.5″PB 556 FDE

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DD M4A1 UPPER URG 14.5″PB 556 FDE

$1,883.99

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The Daniel Defense M4A1 Upper Receiver Group features the M4A1 Rail Interface System (RIS II), which has been in use by US Special Operations Command (SOCOM) for the SOPMOD II Weapons System since 2005. This two-piece, free-floating rail system allows the mounting of devices like a M203 grenade launcher without influencing the barrels harmonics, eliminating problems like wandering point of impact that plagued other mounting designs. The two-piece design also allows for partial disassembly of the rail to aid in cleaning around barrel without completely removing the entire rail system. The weight of anything attached to the RISII rail system is fully supported by a sturdy bolt-up system, using 6 grade 8 bolts, leaving the barrel completely free floating for best possible accuracy and dependability. The M4A1 features a 14.5″ Cold Hammer Forged M4 Profile barrel with a permanently attached Daniel Defense Improved Flash Suppressor to meet the NFA required 16″ length. All Daniel Defense complete upper receiver groups come standard with an M16 profile bolt carrier group.

UPC

815604016612

Manufacturer

Daniel Defense

Manufacturer Part Number

23-004-13150

Barrel Length

14.5" Pinned (16" OAL)

Caliber/Gauge

.223 REM/5.56 NATO

Model

M4A1

Product Type

Upper

Rate of Twist

1-in-7"

Shipping Weight

5.75

Sights

No Sights

Package Width

6.0

Package Height

7.0

Length

28.6

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