Tag Archives: Bolt Carrier Group

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

The following is a Press Release from LanTac-USA:

LANTAC E-BCG™, Enhanced Bolt Carrier Group.

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.

LanTac 308 EBCG 001

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.

LanTac 308 EBCG 002

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.

LanTac 308 EBCG 003

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.

LanTac 308 EBCG 004

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.

LanTac 308 EBCG 005

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.

LanTac 308 EBCG 006

Weight 1Lb 2.1oz
Forward 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 Pin
Mil-Spec Gas Rings
Mil-Spec Staked Gas Key
Grade 8 Hardened Fasteners
All Hard Chrome surfaces are to MIL-STD-171 1.2.2.2
Lifetime Warranty.
Made in the USA

MSRP $345.00

Pre-Order now direct or through our Dealer/Distributor network

www.lantac-usa.com

SFP Tactical Nitride BCG Pre-Order

sfp_tactical_black_nitride_complete_fa_bcg

SFP Tactical is now offering their Black Nitride Complete FA Bolt Carrier Group (BCG) as a Pre-Sale.

This 5.56/.223/.300BLK BCG is machined from 8620 Heat Treated Steel Alloy and Black Nitride (QPQ) coated while the bolt is machined from 9310 Heat Treated Steel Alloy then Shot Peened to increase resistance to micro surface cracking. The bolt is Black Nitride coated and is MPI tested.

The extractor is Nitride coated and has a Crane O-Ring for increased extraction reliability and the Gas Key is secured with Grade-8 hardware and side staked.
The BCG is being offered for $119.95 and is available for pre-sale at:

http://www.sfptac.com/product/sfp-tactical-black-nitride-complete-fa-bcg

SHOT Show 2015 – VooDoo Innovations

SHOT Show 2015 Voodo Innovaions Barrels-1000

VooDoo Innovations was featured this year in the Adams Arms booth at SHOT Show.

They were featuring a long line of varying profile and length AR barrels as well as an one piece Direct Impingement Bolt Carrier.  There will be no concerns of the gas key coming loose or a poor staking job with this one.  VooDoo Innovations is also offering a low-mass BCG, which unfortunately was not available for viewing while I was at the booth.

SHOT Show 2015 VooDoo Innovations Bolt Carrier Group-1000

 

For more information on VooDoo Innovations, please visit: http://www.voodooinnovations.com/