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Evolution247
03-25-2010, 8:44 AM
Hi, I have a new Bravo Company (BCM) 16" M4 Carbine Upper Receiver Group with new Daniel Defense Omega Rails. It is new and has never been fired. It's been in my safe since I purchased it a month ago and now it's time to let her go to someone who can put it to good use as I am focusing my efforts on other things. It should be noted that it does not come with the bolt carrier group or the charging handle as they are being utilized by another build.

Here are some specs on the upper:

M4 Feed Ramp Barrel Extension (USGI)
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 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.

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.

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
*Mil-Spec F-Marked Forged Front Sights
*USGI Government Profile Barrels
*HPT (High Pressure Test) Barrels
*MPI (Magnetic Particle Inspected) Barrels

I'm asking $681. Save on shipping and taxes (if applicable). At this time I'm not interested in trades as I am using these funds to start another project.

OneApart
03-25-2010, 9:11 AM
http://www.calguns.net/calgunforum/attachment.php?attachmentid=50233&d=1269535109

http://www.calguns.net/calgunforum/attachment.php?attachmentid=50234&d=1269535156

evidens83
03-25-2010, 9:30 AM
BCG?

OC_Mike
03-25-2010, 9:37 AM
BCG?

Bolt Carrier Group... I think.

Evolution247
03-25-2010, 9:44 AM
BCG?

That's correct. BCG = Bolt carrier group. This is a BCM, which is a Bravo Company Manufacturing. Top of the line. ;)

Evolution247
03-25-2010, 9:45 AM
http://www.calguns.net/calgunforum/attachment.php?attachmentid=50233&d=1269535109

http://www.calguns.net/calgunforum/attachment.php?attachmentid=50234&d=1269535156

Thanks man. Much appreciated.

tay
03-25-2010, 10:21 AM
Does it come with Bolt carrier group(BCG)?

http://www.bravocompanyusa.com/v/vspfiles/photos/BCG-CMT-MP-M16-2T.jpg

Evolution247
03-25-2010, 10:35 AM
Does it come with Bolt carrier group(BCG)?

http://www.bravocompanyusa.com/v/vspfiles/photos/BCG-CMT-MP-M16-2T.jpg

Thank you for your question. No, it does not come with the BCG or charging handle. They are being utilized by another build.

nrvnqsrxk
03-25-2010, 10:36 AM
. It should be noted that it does not come with the bolt carrier group or the charging handle as they are being utilized by another build.

Written in OP's post.

Evolution247
03-25-2010, 10:45 AM
Written in OP's post. Thank you kind sir. ;)

evidens83
03-25-2010, 10:47 AM
^^ Oops didnt see that part. Thats what I was asking. I know what a BCG is thanks for the clarification.

Evolution247
03-25-2010, 11:06 AM
^^ Oops didnt see that part. Thats what I was asking. I know what a BCG is thanks for the clarification.

No worries. Now buy it!;)

Evolution247
03-26-2010, 1:51 PM
TTT;)

GutPunch
04-06-2010, 5:16 PM
Question: Which DD rails do you have? The pic you are using doesn't appear to have rails on it.

818gtiguy
04-06-2010, 5:23 PM
Question: Which DD rails do you have? The pic you are using doesn't appear to have rails on it.
this..

Hi, I have a new Bravo Company (BCM) 16" M4 Carbine Upper Receiver Group with new Daniel Defense Omega Rails.

Evolution247
04-07-2010, 9:45 AM
Here are some updated photos of the upper. Please note that the covers and AFG are being used by another build and do not come with the package.