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Item Relisted! FS/FT BCM MK2 SS410 18" Complete Upper/with Toolcraft BCG

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Item has been relisted, you can find the new listing at: https://www.theoutdoorstrader.com/t...18-complete-upper-with-toolcraft-bcg.2567742/
Item Name: FS/FT BCM MK2 SS410 18" Complete Upper/with Toolcraft BCG

Location: Decatur

Zip Code: 30030

Item is for: Sale or Trade
Sale Price: $875
Trade Value or Items Looking For: $875 Trade Value

Caliber: 5.56/.223

Willing to Ship: No

Bill of Sale Required?: No

Item Description: I have for sale a like new BCM MK2 18" 1x8 Complete Upper. This is BCM's new, next generation upper receiver group.

80 rounds through this upper. Includes Toolcraft BCG.

****SCOPE NOT INCLUDED****

BCM® MK2 SS410 18" Rifle Upper Receiver Group w/ MCMR-15 Handguard 1/8 Twist

Featuring BCM’s Patent Pending MK2 Upper Receiver
This proprietary design offers enhanced rigidity over the USGI product. The increased rigidity limits barrel deflection which aids in consistency/accuracy. Less flex also reduces premature damage, wear, and failure of bolt lugs from misalignment. A gas expansion chamber is machined above the charging handle track, combined with dual vents machined at the rear (each side, above charging handle latch) help to redirect and vent gas away the shooters face.

SS410 Barrel Steel
This 18" BCM barrel is machined from SS410 stainless steel. Featuring hand lapped 1/8 twist rate button rifling and M4 feed ramps barrel extensions, the 410 stainless barrel gives the shooter the best balance of weight and accuracy. 410 stainless is also harder and more corrosion resistant than conventional 416 stainless found in other commercially available precision barrels.


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.


5.56 NATO Match Chamber (USMC SAM-R Chamber)
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 ammounition. The SAM-R chamber is the precision version of the 556 NATO chamber.

Pictures:
bcm1-jpg.3127195

bbb-jpg.3127203
 
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