Mercury Precision LR-308 Complete Bolt Carrier Assembly Nickel Boron Finish
- .308 WIN/6.5 Creedmoor/.243 WIN
An LR-308 / AR-10 bolt carrier group is a piece of a firearm 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 engage 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.
About this BCG: This BCG is an AR-10 / LR-308 compatible design, allowing use with .308 Winchester, 7.62 NATO, 6.5 Creedmoor, & .243 Win cartridges. The standard AR-10 / LR-308 bolt carrier is also machined from 9310/8620 Alloy Steel and is completed with a Nitride finish. This BCG comes with the ability to be fully-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 Compatibility: .308 Win, 7.62 NATO, 6.5 Creedmoor, .243 Win - This BCG is standard for the .308 Win, 7.62 NATO, 6.5 Creedmoor, .243 Win calibers, and is interchangeable between all 4 simultaneously.
Finish: Nickel Boron - Nickel Barrel Bolt Carrier Groups are popular for their incredible strength and reliability under minimal or zero lubrication.
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 the 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 forwarding 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 speedily help clear malfunctions 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: Mercury Precision
Platform: LR-308 / AR-10
Caliber Compatibility: .308 Win, 7.62 NATO, 6.5 Creedmoor, .243 Win
Bolt Head Material: 9310 Alloy Steel
Bolt Head Finish: Nickel Boron
Body Material: 8620 Alloy Steel
Body Finish: Nickel Boron
Gas System: Direct Impingement
Forward Assist Cuts: Yes
Full Auto Compatible: Yes
Part Number: 4523-3
Recoil Technologies AR .308 LR-308 Mil-Spec Lower Parts Kit
General Info: Lower Parts Kits include all of the small bits & pieces needed to make your AR-10 / LR-308 Lower fully functional. Such as the mag release, take-down pins, selector, trigger guard, bolt catch, buffer retainer, roll-pins, detents, and small springs are included to allow completion. 'Mil-Spec' kits include stronger springs meant to ignite hardened primers found on M80 Ball, and other 7.62x51mm NATO loads.
Brand: The Mil-Spec LR-308 Lower Parts Kit is produced by KAK Industry with high-quality steel & brass components.
Brand Info: .
Platform: 'Mil-Spec' AR-10 / LR-308
FCG Included: The Recoil Technologies LR-308 Lower Parts Kit comes with a Mil-Spec Fire Control Group to ensure reliable operation and ignition of hardened rifle primers.
Grip: The Mil-Spec LR-308 Lower Parts Kit includes an A2 style grip and grip screw to complete your AR-10 / LR-308 lower receiver.
Weight: The overall weight of the Mil-Spec LR-308 Lower Parts Kit is 0.49lbs.
Made in the USA
Trigger Guard Billet Aluminum
Trigger Guard Roll Pin
Bolt Catch Spring
Bolt Catch Roll Pin
Magazine Catch Button
Magazine Catch Spring
Front Pivot Pin
Pivot Pin Detent Spring
Take Down Detent
Buffer Retainer Pin
Buffer Retainer Spring
Black A2 Pistol Grip
Pistol Grip Screw
Pistol Grip Lock Washer
Model: .308 LR-308 Mil-Spec Lower Parts Kit
Includes Fire Control Group: Yes
Includes Grip: Yes
Grip Model/Style: Mil-Spec A2 Grip
Grip Color: Black
Full Auto Compatible: No
Restricted States: No
Part Number: 4470-308
Omega Manufacturing LR-308 Charging Handle - Aluminum
The Charging Handle on the DPMS LR-308 / AR-10 rifle is a simple latching design that indexes with the gas key on your bolt carrier group, this allows you to charge your rifle, eject and feed rounds manually.
About this Charging Handle: Omega Mfg. offers an extensive line of sporting goods products ranging from riflescopes, red dots, flashlights, Iron sights, Mounts, and much more accessories. We serve the needs of our consumers by offering a wide variety of accessories for many different firearm platforms.
This is an Omega Mfg. AR-10/LR308 Charging Handle with Steel Latch. It is a standard AR-10 .308 charging handle. It allows the operator to lock their bolt open or to chamber a round.
Ambidextrous: This AR-15 charging handle can be manipulated from both sides, improving ergonomics for both left and right-handed shooters.
Latch Style: A2 Style - The A2 Style Latch is on the left side of the rifle with a minimalist and sturdy design.
Platform: This charging handle is designed for the LR-308 platform. This will work on the AR-15 platform, but the latch will not engage with a groove cut on the upper receiver, and it will be a few inches longer.
Brand: Omega Manufacturing
Model: LR-308 Charging Handle Aluminum
Latch Style: A2 Style
Platform: LR-308 / AR-10
Part Number: 4326
Omega Mfg. Buffer Tube Parts Kit
Mil-Spec Heavy Duty 6-Position Buffer Tube - (Part Number: 4656)
Omega Mfg. LR-308 Collapsible Stock Buffer - (Part Number: 5037)
LR-308 Buffer Spring - (Part Number: 86441)
AR-15 Mil-Spec Receiver End Plate - (Part Number: 4922)
AR-15 Carbine Castle Nut - (Part Number: 4099)
Please note: If the listing says "In-Stock" it means we have the item(s) 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 customers 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 have received return product. 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, no refund given on warranty items.