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Please note: DUE TO THE POLITICAL CLIMATE many items are out of stock. At this time, we are allowing backorders on some products; however, there are some products we are not allowing backorders on due to not having an ETA on them. Uppers and barrels that are in stock can take up to 2-3 weeks to ship. Small firearm parts ship out within 2 business days. Thank you for your patience during this time!
WHAT MAKES OUR SYSTEM UNIQUE?
For starters the patent pending piston bolt carrier with buffer technology. Second, we designed a system that would be versatile with different calibers from the AR-15 to AR-10 and other variant rifles. Our unique design that has allowed us to get the 7.62x39 piston uppers running reliably has also allowed us to get the 7.62x39 piston mid lengths running reliably also...yes a 7.62x39 mid length piston upper! Our gas piston design that allows this versatility also allows us to run the 300BLK reliably with supersonic and subsonic without a silencer. It is what has allowed us to go from the AR-15 piston platform to the .308 and AR-10 piston platform with great success and reliability!
An In-depth Look Video of Black Rifle Arms Carrier Tilt Solution
Carrier Buffer Technology:
We chose one of the toughest polymer's available for our carrier buffer technology application. The polymer we chose has outstanding abrasion resistance, low coefficient of friction, self-lubricating, chemical and stress cracking resistance, and another key characteristic is impact strength. The polymer is extremely tough product that is used for applications that require durability, high impact and/or abrasive wear resistance. We have been running this carrier since 2009 with no damage to the integrated polymer buffer, nor have we ever had to replace the integrated buffer on any of our customers piston system set ups. Carrier Buffer Technology is a patent pending product that is EXCLUSIVE to Black Rifle Arms.
What is carrier tilt?
Carrier tilt is a matter of physics; every action has an opposite and equal reaction. When the op-rod of any piston system impinges upon the carrier lug it does so off axis causing the carrier to be thrust upwards into the upper receiver at the forward end and thrust downward at the carrier’s rear. These forces transferred directly into the upper receiver and receiver extension resulting in accelerated wear noted most prominently on the receiver extension.
What advantages does this anti tilt/wear piston bolt carrier buffer offer?
The bolt carrier buffer supports the carrier inside the upper receiver better managing carrier tilt, while serving as a wear buffer to protect the upper receiver, receiver extension, and buffer from wear. The bolt carrier buffer is slightly enlarged to better support the carrier inside the upper receiver serving as an alignment tool to keep the bolt and carrier inline with the barrel extension preventing torque on the bolt head. The integrated buffer further guides the bolt carrier within the receiver extension supporting the bolt carrier like a tubular rail type system, without metal on metal contact. Because of the physical properties of the buffer material it is self lubricating, shock absorbing, and has seven times the abrasion resistance of carbon steel. In addition,the polymer type buffer material eliminates contact between the hardened steel carrier, aluminum receiver extension and buffer; furthermore, the shooter will experience a reduction in felt recoil and vibration. We have been running this carrier with buffer technology since 2009 with no issue.