Toolcraft Matte Chrome BCG 556
- Maximum Purchase:
- 4 units
Free Shipping on all Toolcraft Bolt Carrier Groups!
See also our Polished Chrome BCG.
We are extremely pleased to finally be able to offer a chrome bolt carrier group manufactured by Toolcraft! These BCGs exceeded all our expectations.
The combination of state-of-the-art coating technology and improved coating materials makes these the finest chrome bolt carrier groups ever manufactured.
The Physical Vapor Deposition (PVD) process is used to apply a very thin (~3 micron) layer of Chromium Nitride (CrN) to all parts. The result is a BCG with the classic look of traditional chrome but with significantly increased performance.
Chromium Nitride (CrN) benefits
- Twice as hard as traditional hard chrome
- Uniform thickness, no buildup in corners
- Adhesion is superior to plating
- Low coefficient of friction
These chrome BCGs feature Mil-Spec Carpenter 158 bolts, M-16 full-auto profile carriers and the famous Toolcraft lifetime warranty.
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|Bolt||Shot Peened; MPI|
|Bolt Material||Carpenter 158 Steel|
|Bolt Finish||Chromium Nitride (CrN), Glass Bead Matte|
|Caliber||223 | 5.56 NATO | 300 Blackout|
|Extractor O-ring||Viton; Mil Spec|
|Carrier Material||8620 Steel, Toolcraft Proprietary|
|Carrier Finish||Chromium Nitride (CrN), Glass Bead Matte|
|Carrier Design||M16 Full Auto Style|
|Gas Key Material||4130 Steel|
|Cam Pin Material||4140 Steel|
|Cam Pin Finish||Chromium Nitride (CrN), Glass Bead Matte|
|Extractor Material||Tool Steel|
|Firing Pin Material||8740 Steel; Hard Chrome Plated|
Note: Some dealers are selling Toolcraft BCGs that have been finished after leaving Toolcraft. The finish on those BCGs would not be warrantied by Toolcraft. All Toolcraft bolt carrier groups sold by SpiceTac include the 100% no-questions-asked Toolcraft warranty.