Ballistic Lo-Pro Gas Block - Precision Machined, Low-Profile for AR-15 RiflesBallistic Advantage$28.50
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Troy
If you're running a bull barrel AR-15, you need a gas block that matches your barrel's specific geometry — and that's exactly what the Troy .875 low-profile gas block delivers. Built from 4140 pre-hardened steel and finished with MIL-STD manganese phosphate, this precision-machined component is engineered for barrels with a 0.875" gas block seat. It's the kind of no-nonsense part that lets you focus on your rifle's accuracy and reliability rather than worrying about fit or durability.
Low-profile gas blocks are favored by shooters who want a cleaner-looking upper receiver and easier handguard mounting without sacrificing function. Troy's take on the design uses quality material and finish — the manganese phosphate provides reliable corrosion resistance and a durable surface that stands up to field use and cleaning. This is purpose-built hardware, not a generic adapter.
Whether you're building a precision rifle for long-range shooting, setting up a practical competition gun, or just upgrading an existing bull barrel upper, getting the right gas block diameter matters. The .875 size is specific to certain barrel profiles, so verify your barrel's gas block seat before ordering. Once installed, this block will handle whatever you run through it.
| Brand | Troy |
| Material | 4140 Pre-Hardened Steel |
| Finish | MIL-STD Manganese Phosphate |
| Gas Block Seat Size | 0.875" |
| Profile | Low-Profile |
| Intended Use | Bull Barrel AR-15 Rifles |
This gas block is designed for barrels with a 0.875" gas block seat. Check your barrel's specifications to confirm the correct diameter before purchasing, as gas block sizes vary and must match precisely.
No, the gas tube roll pin is not included with this block. You'll need to source that separately if you don't already have one.
Low-profile gas blocks offer a cleaner, more streamlined look on your upper receiver and provide easier clearance for handguard installation, especially with free-float or tight-fitting handguards.
Yes. This is a solid, purpose-built component suitable for precision rifles, competition builds, or any serious AR-15 setup running a compatible bull barrel.
Troy
If you're running a bull barrel AR-15, you need a gas block that matches your barrel's specific geometry — and that's exactly what the Troy .875 low-profile gas block delivers. Built from 4140 pre-hardened steel and finished with MIL-STD manganese phosphate, this precision-machined component is engineered for barrels with a 0.875" gas block seat. It's the kind of no-nonsense part that lets you focus on your rifle's accuracy and reliability rather than worrying about fit or durability.
Low-profile gas blocks are favored by shooters who want a cleaner-looking upper receiver and easier handguard mounting without sacrificing function. Troy's take on the design uses quality material and finish — the manganese phosphate provides reliable corrosion resistance and a durable surface that stands up to field use and cleaning. This is purpose-built hardware, not a generic adapter.
Whether you're building a precision rifle for long-range shooting, setting up a practical competition gun, or just upgrading an existing bull barrel upper, getting the right gas block diameter matters. The .875 size is specific to certain barrel profiles, so verify your barrel's gas block seat before ordering. Once installed, this block will handle whatever you run through it.
| Brand | Troy |
| Material | 4140 Pre-Hardened Steel |
| Finish | MIL-STD Manganese Phosphate |
| Gas Block Seat Size | 0.875" |
| Profile | Low-Profile |
| Intended Use | Bull Barrel AR-15 Rifles |
This gas block is designed for barrels with a 0.875" gas block seat. Check your barrel's specifications to confirm the correct diameter before purchasing, as gas block sizes vary and must match precisely.
No, the gas tube roll pin is not included with this block. You'll need to source that separately if you don't already have one.
Low-profile gas blocks offer a cleaner, more streamlined look on your upper receiver and provide easier clearance for handguard installation, especially with free-float or tight-fitting handguards.
Yes. This is a solid, purpose-built component suitable for precision rifles, competition builds, or any serious AR-15 setup running a compatible bull barrel.
