Fostech Complete Bolt Carrier Group Black
$125.23
Fostech M16 full-auto bolt carrier group, compatible with .223, 5.56, and 300BLK. Designed for use with Echo AR-II and Echo Sport.
10 in stock
This is a standard full-auto M16 cut bolt carrier group. It is designed to function with the Echo AR-II and the Echo Sport.
Bolt Assembly
- Bolt: Shot Peened; Magnetic Particle Inspected and Marked
- Bolt Material: 9310 Alloy Steel
- Compatibility: .223 / 556 / 300BLK
- Extractor: Shot Peened Hardened Tool Steel
- Extractor O-Ring: Viton Mil-Spec
- Gas Rings (3): Mil-Spec
- Finish: BLACK NITRIDE
Bolt Carrier
- Material: 8620 Steel
- Design: Heavy Profile M16 Style
- (Preferred for most AR-15 Builds)
- Gas Key Screws: Grade 8; Properly Torqued and Staked to Mil-Spec
- Gas Key Material: 4130 Steel
- Finish: BLACK NITRIDE
Cam Pin
- Material: 4140 Steel
- Finish: BLACK NITRIDE
Firing Pin
- Material: 8740 Steel; Centerless Ground; Hard Chrome Plated
- Weight: 11.6 Ounces
100% USA Made
| Weight | 0.820 lbs |
|---|---|
| Dimensions | 11.000 × 3.800 × 1.500 in |
| Manufacturer | Fostech |
| Finish | BLACK NITRIDE |
| Weight | 11.6 Ounces |
| Material | 9310 Alloy Steel, 8620 Steel, 4130 Steel, 4140 Steel, 8740 Steel |
| Compatible With | .223 / 556 / 300BLK |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.
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