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BCM Standard 14.5" M4 (SOCOM) Upper Receiver Group W/QRF 7 Quad Rail
BCM Standard 14.5' M4 (SOCOM) Upper Receiver Group W/QRF 7 Quad Rail

BCM Standard 14.5" M4 (SOCOM) Upper Receiver Group W/QRF 7 Quad Rail

Your Price: $610.00
Retail Price:$650.00
You Save:$40.00(6%)
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BCM Standard 14.5" M4 (SOCOM) With BCM's QRF 7 Free Float Picatinny Rail (factory installed). This upper is NFA so you will need to pin a FH/MB onto it to make it 16" OAL.

The SOCOM M4 profile is a mid-weight profile barrel for the M4A1 Carbine. The flats milled under the handguards are for mounting of the M203. SOCOM requested the mid profile to better handle the volume of fire from their shooters. This profile is being adopted as a new standard for the M4A1 Carbine.


M4 Feed Ramp Barrel Extension
M4 Feed Ramp Flat Top Receiver
T-Marked Upper Receivers
USGI 1/7 Twist Rates
USGI 5.56 NATO Chambers
Mil-Spec 11595E - Certified Barrel Steel (CMV)
Chrome Lined Bore and Chamber
Manganese Phosphate Barrel Finish
Mil-Spec F-Marked Forged Front Sights
USGI Government Profile Barrels HPT (High Pressure Test) Barrels
MPI (Magnetic Particle Inspected) Barrels

Featuring the same industry leading barrel nut and lock up design as originally introduced on BCM's evolutionary KMR handguard, the QRF Series of handguards gives the shooter modularity in the picatinny (MIL-STD-1913) platform. Includes T, L, R, and B recoil slot markings on all four rails to aid in repeatable set up for the end user.

This proprietary patented mounting system (US Patent 8904691), includes a mechanical index to the 12:00 rail and positions mounting hardware to mitigate the movement caused by heat generated by the weapon system.

  • Free Float Quad Rail eliminates loads from barrel, reducing the deflection for more accurate shooting.
  • Precision Machined Aerospace 6061-T6 Aluminum Alloy, for high strength and lightweight.
  • Proprietary engineered profile offers additional cross sectional strength.
  • Includes 4 QD Sing Swivel Sockets, (limited rotation)
  • Steel Barrel Nut (same KMR, MMR, and QRF series), to resist movement under heat.
  • Hard Coat Anodized per Mil-A-8625F, Type III, Class 2 
  • Handguard alone weighs 6.9 oz
  • Handguard mounting hardware 2.3 oz
  • 1.3 Inside Diameter
  • 2.12" Wide

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