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LANTAC .308/7.62X51MM Enhanced Full Auto Style Bolt Carrier Group NiB Coated
LANTAC .308/7.62X51MM Enhanced Full Auto Style Bolt Carrier Group NiB Coated
LANTAC .308/7.62X51MM Enhanced Full Auto Style Bolt Carrier Group NiB Coated
LANTAC .308/7.62X51MM Enhanced Full Auto Style Bolt Carrier Group NiB Coated
LANTAC .308/7.62X51MM Enhanced Full Auto Style Bolt Carrier Group NiB Coated

LANTAC .308/7.62X51MM Enhanced Full Auto Style Bolt Carrier Group NiB Coated

Lantac · Bolt Carrier Group

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Best price

$316.99at GunMag Warehouse

In stock checked Oct 2, 2026

Compare 7 stores

Where to buy

StorePriceAvailabilityBuyAdd to build
GunMag Warehouse Best price $316.99checked Oct 2, 2026 In stock Buy at GunMag Warehouse
OpticsPlanet $325.99Salechecked Oct 2, 2026 In stock Buy at OpticsPlanet
Ammunition Depot $351.99checked Oct 2, 2026 In stock Buy at Ammunition Depot
Battlehawk Armory $298.47Salechecked Oct 2, 2026 Check store Buy at Battlehawk Armory
Palmetto State Armory $323.99Salechecked Oct 2, 2026 Check store Buy at Palmetto State Armory
Rainier Arms $327.75not checked recently Check store Buy at Rainier Arms
MidwayUSA $325.99checked Oct 2, 2026 Out of stock Buy at MidwayUSA

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Lowest in-stock price in the last 30 days: $316.99 at GunMag Warehouse. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table
StoreLatestLowestHighest
Ammunition Depot$351.99$351.99$351.99
Battlehawk Armory$298.47$298.47$298.47
GunMag Warehouse$316.99$316.99$316.99
MidwayUSA$325.99$325.99$325.99
OpticsPlanet$325.99$325.99$325.99
Palmetto State Armory$323.99$323.99$323.99

Since Sep 28, 2026.

About this part

The LANTAC .308/7.62X51MM Enhanced Full Auto Style Bolt Carrier Group NiB Coated is a .308 / 7.62x51 bolt carrier group from Lantac. It's sold by 7 stores (3 in stock), from $298.47 to $351.99. The lowest in-stock price in the last 30 days was $316.99 at GunMag Warehouse.

Fits and works with

Caliber
.308 / 7.62x51 · Shop matching ammo
Bolt
AR-10 (.308 / 6.5 CM) · Bolt carrier groups

Specifications

Manufacturer
Lantac
Platform
AR-10

From the manufacturer


AR10 Full Auto Style for increased mass and lock time.Our new BCG is precision machined from 8620 Steel with a 9310 Precision Hard Ground, Magnetically Particle Inspected Bolt.The entire carrier assembly is NiB, Electroless Nickel Boron coated with the patented, advanced UCT EXO process, unlike standard NiB coatings.This offers extreme lubricity with a friction coefficient of .02 and surface hardness of 82-85 Rockwell C.The carriers patent pending design features unique shrouded and forward facing gas ports that have also been re sized so that gas is vented differently to a standard carrier.This results in a system that runs flatter with a smoother energy pulse.In addition the system also runs cooler and cleaner, there is also less pressurization of the upper receiver when running a suppressed barrel.The flared boss at the tail of the carrier enhances the BCG's position within the buffer tube at the time of cycling and allows for a flatter more controlled reciprocation of the assembly.All critical dimensions are hard turned / ground after heat treat.All E-BCG's feature the LANTAC CP-R360-H™ patent pending domed cam pin that is machined from 17-4PH Stainless Steel and hardened to H900 condition (45RC approx).The ultra smooth head reduces wear within the upper receiver.The BCG's weight helps to increase lock time with smoother operation.Gas keys are properly staked at four points and only grade 8 fasteners are used in assembly.The E-BCG's forward porting and unique shape assist in reducing pressurization inside the upper receiver that can be caused by short barrel rifles running suppressors. However, it should be noted that the E-BCG™ is not a complete solution for this issue and all rifles are different. 'Over Gassed' guns will suffer to a larger extent from this problem.    Weight 1Lb 2.1ozForward Porting, Enlarged Vents.Balanced flared boss.8620 Carrier, Heat Treated, Hard Turned.MPI 9310 Bolt, Hard Turned / Ground.NiB UCT EXO Coating.CP-R360-H Domed Cam PinMil-Spec Gas RingsMil-Spec Staked Gas KeyGrade 8 Hardened FastenersAll Hard Chrome surfaces are to MIL-STD-171 1.2.2.2Lifetime Warranty.Made in the USA. 

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$316.99 at GunMag Warehouse
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