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Upgrade your rifle with the Toolcraft 6.5 Grendel Nickel Boron Bolt Carrier Group (BCG) — engineered for shooters who demand top-tier reliability, precision, and longevity. This complete BCG features a Nickel Boron (NiB) coating for superior lubricity, corrosion resistance, and long-lasting smooth operation. Compatible with 6.5 Grendel, 6mm ARC, and .22 ARC, this bolt carrier group is built to perform across multiple high-performance calibers.
Toolcraft is a trusted supplier of BCGs for leading manufacturers, and this unit meets or exceeds MIL-SPEC standards with high-quality materials and manufacturing practices. Whether you're building a match-grade rifle or upgrading your current setup, the Toolcraft NiB BCG ensures consistent cycling and minimal wear under harsh conditions.
Backed by Toolcraft’s Lifetime No-Questions-Asked Warranty, you can trust this BCG to deliver outstanding performance—round after round.
| Finish | Nickel Boron (NiB) |
| Carrier Material | 8620 Steel |
| Bolt Material | 9310 Carpenter Steel |
| Caliber Compatibility | 6.5 Grendel, 6mm ARC, .22 ARC |
| Type | Complete BCG with Forward Assist |
| Extractor | Tool Steel, Black Insert, Viton O-Ring |
| Gas Key | Forged, Grade 8 Hardware, Properly Staked |
| Firing Pin | Shrouded |
| Headspacing | Type II (.136") |
| Warranty | Toolcraft Lifetime Warranty |
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Features
- Nickel Boron (NiB) finish for exceptional lubricity and corrosion resistance
- Compatible with 6.5 Grendel, 6mm ARC, and .22 ARC calibers
- 9310 Carpenter Steel Bolt, Shot Peened and MPI Tested
- 8620 Steel Carrier with full-auto profile
- Forged gas key with Grade 8 fasteners, properly staked
- Tool Steel Extractor with Viton O-ring and black insert
- Shrouded firing pin, mil-spec extractor spring
- Type II bolt face with .136” headspacing
- LIFETIME warranty from Toolcraft
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