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DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS DP51655109558 Caliber: 5.56x45mm NATO, Barrel Length: 16 in, 15% Off w/ Free Shipping

DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS, One Size, DP51655109558
DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS, One Size, DP51655109558
DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS, One Size, DP51655109558
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DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS, One Size, DP51655109558
DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS, One Size, DP51655109558
2 of 2 images
DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS, One Size, DP51655109558

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Customer Reviews
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upper receiver by Skinnier, Verified Owner, January 21, 2026
Awesome product. Shipping was fast Looks good. Perfect fit. Nice and snug
Read 1 Review
Caliber:
5.56x45mm NATO
Barrel Length:
16 in
Gas System Length:
Carbine Length
Barrel Twist Rate:
1-7
Finish:
Phosphate

Code: 458-UFH-DSNP70-DP51655109558

MPN: DP51655109558

UPC: 850032424103

List: $429.99Save 15%
$363.59

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ATTENTION! We currently do not ship this product to AK, CA, HI, IL, NY, WA, P.O. Boxes, and U.S. Territories. Please see our policies for more information.

Product Info for DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS

Barrel: 4150V Chrom Moly steel phosphate coated barrel. Chambered in 5.56 NATO, with a 1/7in twist, M4 barrel extension, and a carbine-length gas system. This M4 profile barrel is finished off with a standard handguard, F-Marked gas sight base, and A2 flash hider.image

Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized. These uppers are made for us right here in the USA by a mil-spec manufacturer.

Bolt: Full-auto profile bolt carrier group. Milspec Carpenter No. 158 steel bolt, Shot Peened, High pressure tested, Mag particle inspected, Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec.

Specifications for DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS:

Manufacturer: DPMS
Caliber: 5.56x45mm NATO
Barrel Length: 16 in
Gas System Length: Carbine Length
Barrel Twist Rate: 1-7
Finish: Phosphate
Barrel Material: 41V50 Chrome-Moly Vanadium Steel

Package Contents:

  • DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS

DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS Orderable Models

List of Orderable Models

  • DPMS M4 5.56x45mm NATO, 16 inch Upper Receiver w/Rear MBUS, One Size, DP51655109558 , MPN: DP51655109558 , UPC: 850032424103 , Code: 458-UFH-DSNP70-DP51655109558
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