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  BCM Standard 11.5" Upper Receiver Group with Centurion C4, 10" Handguard (NFA)

BCM Standard 11.5" Upper Receiver Group with Centurion C4, 10" Handguard (NFA)
BCM Standard 11.5" Upper Receiver Group with Centurion C4, 10" Handguard (NFA)


 
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Our Price: $695.50


Stock Status:(Out of Stock)
Product Code: BCM-URG-11-C4-10

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Bravo Company MFG, Inc. Introduces a New Series of Upper Receiver Groups, featuring the Centurion Arms C4 10" Handguard

The Centurion patent pending C4 rail system is a lightweight, rugged, 2 piece free float rail that when installed gives the uppers a continuous 12o’clock rail. The C4 system is the lightest and most rigid rail that clamps to a standard barrel nut on all AR15, M4, and M16 type weapons systems. This design allows the installation of the rail on an upper assembly without removing the front sight post or permanently attached muzzle devices.

C4 KEY FEATURES

• Weight: 10.7oz with screws---1.1oz with standard barrel nut

• Length: 10in

• Width: 2.1in

• Height: 2.38

• Inside diameter: 1.37

• Rails: 1913 spec rail with proper T-marks

• Fasteners: grade 8 bolts phosphate finished

• MADE IN USA

MATERIALS & CONSTRUCTION

• Material: 6061 T6

• Finish: : type 3 hard coat anodized


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Please check back with our website often. Sorry but we cannot take pre-orders or backorders on these products.

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. These do not include bolt carrier groups, UNLESS selected from the drop down menu above.

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 Barrel Steel (Certified Mil-B-11595E)

BCM barrel steel is Mil-Spec per MIL-B-11595E, and is independently certified. 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. This 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 world wide 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.

· 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 © 2015 Bravo Company MFG, Inc.

Features
  • 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
  • USGI Government Profile Barrels
  • HPT (High Pressure Test) Barrels
  • MPI (Magnetic Particle Inspected) Barrels
Average Customer Review: 5 of 5 Total Reviews: 2 Write a review.

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  0 of 0 people found the following review helpful:
 
BCM sets the standard. June 20, 2016
Reviewer: TIMOTHY IVEY from LAURINBURG, NC United States  
I bought the 11.5" upper and BCM lower after receiving my tax stamp.  I put them together and headed to the range and immediately fell in love with their craftsmanship.  My favorite part about the rifle is the trigger mechanism.  These rifle are top quality and should be used a standard for our duty rifles in the Army.  The customer support was also a real help in purchasing and made my experience very simple.

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  0 of 0 people found the following review helpful:
 
Good customer service. May 11, 2016
Reviewer: Alex from Colorado, United States  
I purchased an upper and BCG and received it without the BCG. I promptly sent an email to let them know what had happened, and after I emailed back the form I needed to fill out, I had a tracking number for the BCG within a day or so. Mistakes happen and I'm happy they made it right without much hassle. They always have fast shipping, and an accurate "in stock" inventory on their site.

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