Kak Industry Llc. M16 Bcg 6.5Mm Grendel Type 2 Chrome & Phosphate BlackKak Industry$125.99
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Kak Industry
Building a reliable 6.5 Grendel rifle starts with the bolt carrier group, and the KAK Industry K-Spec M16 BCG Type 2 is engineered to deliver the performance and durability your platform demands. This chrome and phosphate-coated bolt carrier group combines mil-spec dimensioning with KAK's signature enhancements—including slotted angle carrier rails and a dual ejector system—to handle the rigors of precision shooting, hunting, or high-round-count training. The 6.5 Grendel Type II bolt face pairs with a full-auto M16 carrier profile, so you get the proven geometry that works in AR-platform uppers designed for this caliber.
What sets the K-Spec apart is KAK's Down Vent configuration. Instead of venting gas backward toward your face, this design redirects it downward—reducing both shooter fatigue from gas wash and the overall gassy feel during extended shooting sessions. That's the kind of thoughtful engineering that makes a difference when you're behind the gun for hours at the range or in the field.
Every component is selected for longevity. The carrier itself is machined from 8620 steel, properly heat-treated and ground to exact tolerances. The extractor is a single-piece billet-machined 4140 unit with phosphate coating for reliability and corrosion resistance. The firing pin is 8740 chrome-plated steel, precision-ground and heat-treated. The cam pin, ejector and extractor retaining pin, gas key, and mounting hardware are all matched to withstand repeated cycling and harsh conditions. The gas key is staked, Permatex-sealed, and chrome-lined for added protection.
Whether you're upgrading an existing upper or building from scratch, this BCG delivers the reliability and attention to detail serious 6.5 Grendel shooters expect.
| Caliber/Type | 6.5 Grendel Type II |
| Bolt Face | Type II (6.5 Grendel) |
| Carrier Profile | M16 (Full Auto) |
| Carrier Material | 8620 Steel, heat-treated and ground to tolerance |
| Extractor | Single-piece billet 4140 steel, phosphate-coated |
| Firing Pin | 8740 chrome-plated steel, precision-ground and heat-treated |
| Cam Pin | 4340 phosphate-coated |
| Gas Key | 4130 steel, phosphate-coated, chrome-lined, staked and Permatex-sealed |
| Ejector/Extractor Retaining Pin | S7 Tool Steel |
| Key Fasteners | Grade 8 T25 drive screws, properly heat-treated |
| Special Features | Down Vent gas redirection, slotted angle carrier rails, dual ejector system |
| Finish | Chrome and phosphate black |
The K-Spec uses a Type II bolt face designed for 6.5 Grendel ammunition and a full-auto M16 carrier profile, which are the standard dimensions for AR-platform 6.5 Grendel builds. It will work in any upper receiver reamed for Type II 6.5 Grendel.
The Down Vent directs propellant gases downward from the bolt carrier instead of venting them backward toward your face. This reduces gas blow-back and fatigue during long shooting sessions, making it a more pleasant shooting experience without sacrificing reliability.
This bolt carrier group is built specifically for 6.5 Grendel with a Type II bolt face. It is not compatible with other calibers or bolt faces.
The K-Spec incorporates proprietary enhancements—slotted angle carrier rails, a dual ejector system, the Down Vent gas redirection system, and premium materials throughout. Each component, from the 8620 carrier to the chrome-plated firing pin and staked, sealed gas key, is selected and machined for long-term reliability under demanding conditions.
Kak Industry
Building a reliable 6.5 Grendel rifle starts with the bolt carrier group, and the KAK Industry K-Spec M16 BCG Type 2 is engineered to deliver the performance and durability your platform demands. This chrome and phosphate-coated bolt carrier group combines mil-spec dimensioning with KAK's signature enhancements—including slotted angle carrier rails and a dual ejector system—to handle the rigors of precision shooting, hunting, or high-round-count training. The 6.5 Grendel Type II bolt face pairs with a full-auto M16 carrier profile, so you get the proven geometry that works in AR-platform uppers designed for this caliber.
What sets the K-Spec apart is KAK's Down Vent configuration. Instead of venting gas backward toward your face, this design redirects it downward—reducing both shooter fatigue from gas wash and the overall gassy feel during extended shooting sessions. That's the kind of thoughtful engineering that makes a difference when you're behind the gun for hours at the range or in the field.
Every component is selected for longevity. The carrier itself is machined from 8620 steel, properly heat-treated and ground to exact tolerances. The extractor is a single-piece billet-machined 4140 unit with phosphate coating for reliability and corrosion resistance. The firing pin is 8740 chrome-plated steel, precision-ground and heat-treated. The cam pin, ejector and extractor retaining pin, gas key, and mounting hardware are all matched to withstand repeated cycling and harsh conditions. The gas key is staked, Permatex-sealed, and chrome-lined for added protection.
Whether you're upgrading an existing upper or building from scratch, this BCG delivers the reliability and attention to detail serious 6.5 Grendel shooters expect.
| Caliber/Type | 6.5 Grendel Type II |
| Bolt Face | Type II (6.5 Grendel) |
| Carrier Profile | M16 (Full Auto) |
| Carrier Material | 8620 Steel, heat-treated and ground to tolerance |
| Extractor | Single-piece billet 4140 steel, phosphate-coated |
| Firing Pin | 8740 chrome-plated steel, precision-ground and heat-treated |
| Cam Pin | 4340 phosphate-coated |
| Gas Key | 4130 steel, phosphate-coated, chrome-lined, staked and Permatex-sealed |
| Ejector/Extractor Retaining Pin | S7 Tool Steel |
| Key Fasteners | Grade 8 T25 drive screws, properly heat-treated |
| Special Features | Down Vent gas redirection, slotted angle carrier rails, dual ejector system |
| Finish | Chrome and phosphate black |
The K-Spec uses a Type II bolt face designed for 6.5 Grendel ammunition and a full-auto M16 carrier profile, which are the standard dimensions for AR-platform 6.5 Grendel builds. It will work in any upper receiver reamed for Type II 6.5 Grendel.
The Down Vent directs propellant gases downward from the bolt carrier instead of venting them backward toward your face. This reduces gas blow-back and fatigue during long shooting sessions, making it a more pleasant shooting experience without sacrificing reliability.
This bolt carrier group is built specifically for 6.5 Grendel with a Type II bolt face. It is not compatible with other calibers or bolt faces.
The K-Spec incorporates proprietary enhancements—slotted angle carrier rails, a dual ejector system, the Down Vent gas redirection system, and premium materials throughout. Each component, from the 8620 carrier to the chrome-plated firing pin and staked, sealed gas key, is selected and machined for long-term reliability under demanding conditions.
