Recoil Technologies AR-15 Phosphate 7.62x39 Bolt Carrier Group
An AR-15 bolt carrier group is the critical piece of an upper receiver that houses many important parts such as the firing pin, gas key, cam pin, extractor, and bolt. With all these pieces working together the BCG can grab and feed another round out of a detachable magazine, chambers and engages the cam groove, engage with the locking lugs in the barrel, fire, and extract a spent cartridge. During the extraction of a cartridge, the BCG works to absorb the force of the explosion by expanding gas in the carrier. During this process gas is tapped off from the barrel and is sent into the cup inside of the gas key, creating an inertial force that sends the Bolt Carrier Group back into the buffer tube which helps to minimize the recoil of your gun when firing and the cycle will repeat for subsequent shots. For 7.62x39 bolt carriers, the bolt head is larger to accept the larger diameter casing of 7.62x39 Cartridges.
About this BCG: This BCG is an AR-15 compatible design, allowing use with 7.62x39 cartridges. The 7.62x39 AR-15 bolt carrier is also machined from 9310 and 8620 Alloy Steel and is completed with a phosphate finish. This BCG comes with the ability to be full-auto compatible and also features forward assist notches. MPI testing has also been done to ensure that there are no structural flaws to this BCG.
Caliber Compatability: 7.62x39 - This BCG is designed for the 7.62x39 caliber. The most common cartridge used in AK series of rifles.
Finish: Manganese Phosphate - Manganese Phosphate finishes are used on Bolt Carriers to protect against corrosion and wear. Manganese Phosphate finish is considered for its toughness, and is used in multiple different applications such as aerospace, ordnance, and other firearms-related parts.
Material: 9310 Alloy Steel - Bolt Head - 9310 Steel is a low alloy steel that is a mixture of nickel, chromium, and molybdenum. This steel is built to have high core hardness and high fatigue strength which make it the perfect steel to hold up in the harsh environments of the bolt head.
8620 Alloy Steel - Body - 8620 Steel is a carburized alloy steel meaning carbon was added to increase hardness of the steel. 8620 is known for its high case toughness and high core toughness. Made mostly of nickel concentrate, this steel can easily withstand the firing stress of the BCG under operation.
Forward Assist Notches: This BCG comes with forward assist notches which allow the forward assist on the upper to contact the BCG pushing it forward and locking the bolt into place. These forward assist notches can also help clear malfunctions in a speedy manner when the BCG becomes jammed.
Gas System: Direct Impingement - Direct impingement is the process of directing the gas created during the operation of a firearm through the barrel, gas block, gas tube, and eventually into the BCG again to cycle the action and prepare the firearm for another round.
Brand: Recoil Technologies
Caliber Compatibility: 7.62x39
Bolt Head Material: 9310 Alloy Steel
Bolt Head Finish: Phosphate
Body Material: 8620 Alloy Steel
Body Finish: Phosphate
Firing Pin: Standard
Gas System: Direct Impingement
Forward Assist Cuts: Yes
Full Auto Compatible: Yes
Please note: If the listing says "In-Stock" it means we have all of the items in stock. Please check this LINK to view our most up to date shipping status.
Warranty, Returns & Terms:
Delta Team Tactical offers a 30 day return, refund and exchange policy. You must email or call Delta Team Tactical and obtain an RMA number prior to any return, refund, or exchange. All returns must include the original order number, receipt or invoice, along with the billing address, shipping address, contact phone numbers, contact emails, and RMA number. Returns, refunds, and exchanges may take up to two weeks, not including transit times, for processing after we receive it. Return shipping costs will be the responsibility of the returning party, with the exception of the wrong item being received or on warranty exchange during the first 30 days after delivery. Items returned for warranty will only be replaced or exchanged, not refunded.