Description
The LANTAC M-SPEC Bolt Carrier Group, 5.56/.223, Black Nitride (brand part no. 01-MSPEC-556-TIN-BCG), from LANTAC USA, follows military-spec dimensions and tolerances with a few upgrades above the standard milspec rating.
Key Specifications
- 8620 steel carrier, full-auto style with increased mass, QPQ nitrided.
- Carpenter 158 or 9310 steel bolt, shot peened and hard-turned to milspec.
- Lantac CP-R360 domed cam pin, 17-4PH stainless, hand polished.
- 5.56/.223 caliber, lifetime warranty, made in the USA.
Frequently Asked Questions
What sets this apart from a standard milspec BCG? It follows milspec dimensions and tolerances but adds QPQ nitride treatment (instead of Type M phosphate) and a domed cam pin for reduced friction and wear.
Buy the LANTAC M-SPEC Bolt Carrier Group, 5.56/.223, Black Nitride
Add this to your AR bolt carrier groups lineup, shipped from our Lubbock, Texas gun shop.
Additional Information
| UPC | 640117876282 |
|---|---|
| Manufacturer | Lantac USA |
| Manufacturer Part Number | 01-MSPEC-556-TIN-BCG |
| Length | 11 |
| Product Type | Bolt Carrier Group |
| Model | M-SPEC |







