51Fifty M5 SBR: Engineered for Ultimate Performance

The 51Fifty EM5 SBR is designed to meet the demanding needs of Law Enforcement, Military, and Government Agencies. Whether you’re a member of SWAT, Special Forces, a Patrol Officer, Infantry, Security Specialist, or Government Operator, this short-barreled rifle is built to excel in any environment and deliver when it counts.

The eM5 SBR features a reengineered magwell, shortened by 1 inch, with a large flare and deep chamfers, ensuring fast and smooth magazine changes even under pressure. With selectable fire controls—semi-auto, full-auto, or tri-burst—and an ambidextrous safety, it offers flexibility for diverse tactical situations. The patent-pending Rapid Action Cam (R.A.C.) system guarantees tighter tolerances, sub-MOA accuracy, and drastically reduces recoil and muzzle rise, ensuring you maintain control in high-stress scenarios.

Equipped with the Tactical Advantage ARCA-15 handguard, the eM5 SBR includes an integral 45-degree red-dot mounting, five rows of M-LOK for easy customization, and QD cups for versatile tactical setups. Its amphibious capabilities allow it to thrive in the harshest environments, while its compact design ensures maneuverability in tight spaces.

Built for superior reliability, precision, and performance, the eM5 SBR stands ready to endure the toughest conditions while delivering unmatched firepower. When the mission is critical, rely on the rifle that never compromises—51Fifty.

EM5 SPECS

LOWER RECEIVER MATERIAL:

7075 BILLET ALUMINUM

UPPER RECEIVER MATERIAL:

7075 BILLET ALUMINUM

receiver attachment:

rapid action cam(r.a.c.) - patent pending

HANDGUARD MATERIAL:

6061 BILLET ALUMINUM

HANDGUARD:

TACTICAL ADVANTAGE ARCA-15

EJECTION:

LEFT OR RIGHT

MUZZLE DEVICE:

SINGLE PORT BREEK LOK SUPPRESSOR QD BRAKE

BARREL length:

10.5", 12.5"

calibers:

.223 WYLDE, 300blk

BARREL feed ramp:

single "fat" feed ramp

fire control:

semi auto, full auto, tri-burst

gas system:

direct impingement

charging handle:

ambidextrous gas blocking suppressor optimized

buffer system:

standard or amphibious buffer

bolt carrier group:

8620 steel nitride coated full auto rated bcg

grip & stock:

amend2 pistol grip & ams modular stock

COLORS:

BLACK, GREY, FDE, OD GREEN

accuracy:

sub-moa

business Hours

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