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BCM® Standard Mid Length Complete Upper Receiver Group w/ Raider-M13 Handguard for AR-15 Lower Receivers (Length: 14.5")

ID: 116815 (Upper-BCM-14-RAIDER-M13)
BCM-URG-MID-14-RAIDER-M13
BCM® Standard Mid Length Complete Upper Receiver Group w/ Raider-M13 Handguard for AR-15 Lower Receivers (Length: 14.5)
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BCM

$761.45

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Features

  • Factory machined M4 feed ramps on the receiver with hard coat anodization adding significant strength to the aluminum
  • USGI type laser etched T-marks to provide addressing for the remounting of tactical accessories such as optics, laser sights, etc
  • Preferred USGI 1/7 twist rate effectively runs new heavier 5.56 ammo
  • BCM barrel steel is Mil-Spec per MIL-B-11595E is stronger and will last longer than typical barrels offered in the commercial market
  • Chrome lined bore and chamber is harder than the barrel steel and aids in chambering, extraction and reliability
  • Barrrel manganese phosphate finish (Mil-Spec A-A-59267) creates a porous surface to absorb oil as to resist against corrosion from the elements
  • The USGI barrel profiles enable the operator to carry their weapon for longer periods of time and deploy them faster
  • HPT / MP inspected barrels
  • The Raider-M13 handguard is equipped with M-LOK compatible mounting slots, uninterupted Pictatinny top rail as well as picatinny sections on the 3, 6 and 9 o' clock positions
  • Ports have been positioned to enable pass throughs for securing vital equipment with zip ties or MIL-SPEC cording
  • Patented (US Patent 8904691) lock up system ensures continuous top center alignment of the rail and mitigates forwards/backwards movement of the handguard when the weapon is fired
Manufactured by Bravo Company MFG, Inc. (BCM)
These Barreled Upper Receiver Groups are designed for shooting professionals and responsible civilians 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 and Upper 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 upper receivers 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, private security personal, and personal defense 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 worldwide standard in the industry for a battle rifle. The chrome bore and chamber is harder than the barrel steel and 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 or high quality personal defense ammunition.

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.

BCM RAIDER-M13 Rail
The RAIDER is built using a double wall extrusion creating one of the most rigid free-float platforms in its weight class.
  • RAIDER-M13 handguard [ ~11.7oz ]
  • Mounting hardware [ 2.3oz ]
Its unique architecture that balances weight, rigidity, and capability translates to a more consistent zero retention with handguard mounted electro-optics and lasers.

MIL-STD-1913 remains the most durable interface for mission essential equipment. Accordingly, the BCM RAIDER offers Pic rails where these enhancements are most likely to be positioned with six channels of Pic rail interfaces at 3, 6, and 9 o'clock, as well as an uninterrupted 1913 rail along the top of the handguard.

Finally, a series of ports have been positioned to enable pass throughs for securing vital equipment with zip ties or MIL-SPEC cording.

COMBAT RAIL LOCK UP
The entire BCM Combat Rail System fleet uses our patented (US Patent 8904691) lock up system where self-locking cross bolts apply force at the 12:00 position of the handguard equally distributing force around the surface area of the rail. This ensures continuous top center alignment of the rail and mitigates forwards/backwards movement of the handguard when the weapon system is fired.

Whether forced to take action as an individual to protect innocent life or conducting distributed operations as part of a larger force for a strategic goal, the RAIDER is built to enable success. Your mission, is our mission.

Manufacturer: BCM

Specifications:

Caliber: 5.56 NATO
Barrel Length: 14.5"
Barrel Material: 11595E Spec Steel
Barrel Finish: Manganese Phosphate (Mil-Spec A-A-59267)
Bore & Chamber: Chrome Lined
Twist Rate: 1/7
Compatibility: Most compatible AR15 style lower receivers

NOTE: NFA rules apply

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