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Daniel Defense AR-15 M4A1 Upper Receiver Assembly 5.56x45mm 14.5" Pinned Barrel

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MSRP:

$70.00

Used Price:

$70.00

Sale Price:

$1426.00

Daniel Defense AR-15 M4A1 Upper Receiver Assembly 5.56x45mm 14.5" Pinned Barrel Gun Stats

Daniel Defense AR-15 M4A1 Upper Receiver Assembly 5.56x45mm 14.5" Pinned Barrel

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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. Daniel Defense complete upper receiver groups come complete with bolt carrier group and charging handle.

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Daniel Defense AR-15 M4A1 Upper Receiver Assembly 5.56x45mm 14.5" Pinned Barrel Specs

1 Brand

2 Category

3 Cartridge

5.56x45mm NATO

4 Finish

Hardcoat Anodized

5 Material

Aluminum

6 Weight

4.56 Pound

7 Barrel Length

14.5 Inches

8 Twist

1:7 Inches

9 Barrel Contour

M4

10 Sights

No

11 Barrel Finish

Anodized Black

12 Chrome Lined

Yes

13 Gas System Length

Carbine

14 M4 Feed Ramps

Yes

15 Upper Receiver Type

A4 Flat-Top

16 Barrel Material

Chrome Moly Steel

17 Handguard

Daniel Defense M4A1 Rail Interface System (RIS) II

18 Bolt Carrier Assembly Included

Yes

19 Muzzle Device

Daniel Defense Extended Flash Suppressor

20 Mil-Spec or Commercial

Mil-Spec

21 Country of Origin

United States of America

22 Shipping Weight

5.700 Pounds

Technical Data

Cartridge

5.56x45mm NATO

Finish

Hardcoat Anodized

Material

Aluminum

Weight

4.56 Pound

Barrel Length

14.5 Inches

Twist

1:7 Inches

Barrel Contour

M4

Sights

No

Barrel Finish

Anodized Black

Chrome Lined

Yes

Gas System Length

Carbine

M4 Feed Ramps

Yes

Upper Receiver Type

A4 Flat-Top

Barrel Material

Chrome Moly Steel

Handguard

Daniel Defense M4A1 Rail Interface System (RIS) II

Bolt Carrier Assembly Included

Yes

Muzzle Device

Daniel Defense Extended Flash Suppressor

Mil-Spec or Commercial

Mil-Spec

Country of Origin

United States of America

Shipping Weight

5.700 Pounds

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