BCM® Standard 14.5" M4 (SOCOM) Upper Receiver Group

MSRP: $564.00
Your Price: $464.00
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M4 Feed Ramp Barrel Extension

Out of stock

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.

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Professional Grade Weaponry, by BCM®™
Made by Bravo Company MFG, Inc. (BCM®™) These Barreled Upper Receiver Groups are designed for shooting professionals with the Mil-Spec features for the demands of their duty. They are fully assembled, headspaced, and test fired.
As a note: BCM®™ barrel components are parkerized separately before assembly. Prior to shipping, all BCM®™ upper receiver groups are test fired for function, laser bore sighted with a Milspec carry handle for sight alignment within Mil-Specs, and then batch samples are test fired for accuracy. As such, the upper receiver group will show handling marks consistent with these quality control procedures.

M4 Feed Ramp Barrel Extension
M4 Feed Ramp Flat Top Receiver
In developing the USGI M4 carbine as one of the primary weapons for today s infantry, some modifications were performed to the original M16 platform to enhance the reliability of the shorter barreled carbines. With the shorter carbine gas system and the increased gas port pressure, the carbine cycled faster, and at times the cycle rate could be faster than the magazine would feed ammunition. One of the modifications done to increase reliable feeding included enhancing the angle and the length of the feed ramps. This USGI modification was done to both the barrel extension and the upper receiver, creating a longer and steeper feed ramp. These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process. As a result, the factory machined M4 feed ramps on the receiver are hard coat anodized which adds significant strength to the aluminum. This feature is offered on all BCM® uppers and all BCM® barrels.
T-Marked Upper Receiver
The contemporary M16/M4 rifle is built around the concept of modularity. All of the BCM® flat top uppers feature a USGI type laser etched T-marks to provide addressing for the remounting of tactical accessories such as optics, laser sights, etc. This enables the weapon platform to be easily configured and then accurately reconfigured for each specific mission.
USGI 1/7 Twist Rate
The USGI 1/7 twist rate of all of the BCM® barrels is the preferred twist rate by most professional infantryman. This twist rate has proven very versatile and can effectively run the new heavier 5.56 ammo that is hugely popular with military and private security personal for its superior ballistics.
Mil-Spec 11595E - Barrel Steel
BCM® barrel steel is Mil-Spec per MIL-B-11595E. This grade (CMV) of steel is a Mil-Spec steel used in the USGI M16 family of rifles; it is stronger and will last longer than the typical barrels offered in the commercial market. The Mil-Spec grade steel gets its additional strength and rigidity from an increase in carbon and/or vanadium in the alloy. This will offer increased barrel life and performance through use in all types of extreme environments and temperatures.
Chrome Bore and Chamber
One of the first modifications that were made to the original M16 in the mid 1960 s was the addition of the chrome lined bore and chamber. It is now a worldwide standard in the industry for a battle rifle. The chrome bore and chamber is harder than the barrel steel and on the USGI M16/M4 rifles will aid in chambering, extraction, and reliability. It increases velocity, and also resist against fouling and corrosion from extended use in the field. This gives the end user a longer barrel life with less required time in maintenance and cleaning.
Manganese Phosphate Barrel Finish
Barrels are parkerized with the manganese phosphate finish (Mil-Spec A-A-59267). Military specifications also state that the entire barrel surface is phosphate finished to create a porous surface to absorb oil as to resist against corrosion from the elements. BCM® barrels are phosphated before installation of front sights. This is a much more extensive assembly operation, but insures that the entire barrel is finished and protected . . .even under the front sight base.
5.56 NATO Chambers
The USGI 5.56 NATO chamber is the best choice for effective deployment, reliability, and compatibility, of higher chamber pressures of military ammo.
Mil-Spec F-Marked Forged Front Sight Bases
Mil-Spec for rifles issued to the troops require taller front sight bases on all flat top AR rifles. Many commercial offerings use M16A2 height front sight bases on all of their barrels regardless of what type of upper it is installed on. As a result, owners of rifles and carbines with the flat top receiver configuration can have problems getting a proper 'zero' for elevation with Mil-Spec back up iron sights. As all of the BCM® uppers are built for flat top uppers, all have the proper Mil-Spec F marked front sight base to insure the correct height for iron sight zeroing when using military iron sights. Mil-Spec taper pins secure the forged front sight base with the sling swivel secured by tubular rivets.
Government Barrel Profiles
Duty rifles are built to be carried - day in and day out. The USGI barrel profiles (often referred to as the Government Profile) enable the operator to carry their weapon for longer periods of time and deploy them faster than the heavier commercial H-Barrel counterparts. The government profile barrel is also compatible with the current M203 mounting systems.
HPT / MP Inspected Barrels
Military specifications require that barrels undergo a HPT (High-Pressure Test) load as a part of quality assurance procedures. Commonly referred to as a proof load, the M197 HPT is rated for 70,000 psi. BCM® barrels are proof loaded and then MPI (Magnetic Particle Inspected) to detect any possible flaws in the barrels surface. The barrels are MP inspected with both circular and longitudinal magnetic fields per ASTME1444-01 (current Mil-Spec) to assure a high quality finished product. All BCM® barrels are marked HP MP as our proof load marking.
Copyright 2005 - 2010 Bravo Company MFG, Inc.
***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

75 Reviews

  • 5
    Recent Order

    Posted by Carl Shaw on Sep 9th 2019

    Outstanding service, nothing but great shipping. I will definitely order again. Semper Fi Carl

  • 5
    Shoots flat and smooth.

    Posted by 559er on Sep 1st 2019

    Not much to say. It’s a BCM upper. It’s ready to go, no if’s and’s or but’s. Give it a squirt of oil and watch it go!

  • 5
    Excellent fit

    Posted by Arnie on Aug 6th 2019

    I paired this BCM upper with my Colt 6921. it fits perfect, no rattles unlike the 6921 upper. this BCM upper fits like a glove. really happy with the purchase, fast shipping too!!

  • 5
    Outstanding Service

    Posted by Nicholas on Aug 2nd 2019

    Arrived in 1 day with stickers, posters, and a hat. Delta ring was removed liked I requested so I didn’t have to dremel it myself. Can’t find anything to complain about.

  • 5
    Customer review

    Posted by KRISTOPHER DIMAURO on Jul 22nd 2019

    Review body is empty

  • 5
    Unparalleled performance

    Posted by Nick Kyne on Jul 17th 2019

    There are a lot of good barrels out there, but the 14.5 socom is king of them all. Well rounded and capable of any task. Precise and reliable. This bcm upper is hands down my favorite urg on the market.

  • 5
    The standard by which all should live up to...

    Posted by Romero Herd on Jul 17th 2019

    This was my first BCM purchase and I must say it will not be my last! I did a lot of research prior to making this purchase. I was down to Colt & BCM. BCM’s quality, attention to detail and overall customer service won me over. I am a US Army veteran and I wanted something similar to my old M4 service weapon. This BCM 14.5” SOPMOD M4 carbine hit a home run! The attention to detail by BCM is the standard by which all companies should aspire to meet. The detailed quality of the parts used and the pricing exceeded my expectations. I appreciate all of the BCM badging that shows pride in the product offered as well as the fast shipping. Thx BCM for offering a great product that’s made In the USA!

  • 5
    Customer Service

    Posted by Joshua Gonzalez on Jul 17th 2019

    Without a doubt BCM is truly America’s best gun manufacturer/ distributor. BCM went above and beyond from helping with returns, assisting in purchases and being super helpful through it all. It can be nerve wracking shopping online especially for weapons/ weapon parts. However, BCM associates made it convenient. Thank you BCM for being the weapon brand I try on to get me home to my family!

    P.S my rifle is Bad Ass #strictlyBCM

  • 5
    Fantastic Quality

    Posted by Luis Ortiz on Jul 17th 2019

    I carried an M249 daily overseas so the weight doesn't bother me at all. Not sure if it says it in the specs but it has polished feed ramps. I wasn't expecting much regarding accuracy but it actually shot tighter than the FN upper I have from another build. Delivery was pretty quick too. Good job BCM! Wish I had gotten one of those awesome hats though but the upper is fantastic!