LANTAC is probably best known for their muzzle devices, specifically the Dragon. Those who aren’t fans of brakes (and believe us, not all of our minions are–especially when used inside structures) may have paid little attention to anything else they’ve put out. Nature of the beast. But they recently announced something different: a 7.62N AR bolt carrier group (BCG). We know, cue the applause.
The full name is rather wordy as, “LANTAC .308/7.62x51MM Enhanced Full Auto Style Bolt Carrier Group NiB Coated” or “E-BCG” for short. But honestly, after the initial (and perhaps too brief) inspection, we think LANTAC has something going on here.
7.62N AR’s come with their own laundry list of unique issues relative to their 5.56 baby brothers. This is especially evident when they’re in a short barreled or suppressed format; that extra gas wreaks all manner of havoc and gives what tactful engineers like to call “opportunities“, but we call “not damn running right“.
To that end, there are several features of this new BCG that should tailor well to any old 7.62N AR, but suppressed ones in particular. The main standouts to us were the gas vents in the carrier itself (enlarged and pointed forward) and the machined and smoothed domed cam pin. The gas ports should make for a smoother impulse and allow for the chamber pressure to subside a bit before attempting extraction. And as the name would imply, the whole shebang is covered in Nickel Boron Über-coating.
Check out the pictures LANTAC provided:
Here’s what LANTAC has to say about it:
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.
We really appreciate that LANTAC isn’t claiming this will solve all your problems and end world hunger, or even ensure you’ll get lucky this weekend. They’re pretty clear that this is part of a solution. And from the looks of things, it might even work. We intend to find out for ourselves here in the near future.
Other specifications include:
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-171 188.8.131.52
Made in the USA
For more information on the LANTAC E-BCG, Enhanced Bolt Carrier Group, visit them online here.