SKU: OV010136
UPC: 812699010136
MPN: SGAS-A4L-00BT-00
The Troy .750 Low Profile Gas Block in black is a precision-engineered component designed for AR-platform rifle barrels with 0.750-inch gas block seats. Machined from 4140 pre-hardened steel and finished with MIL-STD Manganese Phosphate, this low-profile gas block delivers the durability and corrosion resistance demanded in field environments while maintaining a compact footprint that clears most aftermarket rail systems.
The low-profile design is the critical differentiator for operators running modern free-floating rail systems or KeyMod/M-LOK handguards that require minimal obstruction at the barrel. Dual set screws ensure a tight, repeatable seal to the barrel without relying on a journal fit, reducing the risk of gas leakage under sustained fire. The 4140 steel construction provides superior hardness and dimensional stability compared to aluminum alternatives, making this block suitable for both suppressed and unsuppressed configurations. Note that the gas tube roll pin is not included and must be sourced separately.
This component is ideal for shooters building or upgrading mid-length and rifle-length gas system carbines where rail-mounted optics, forward-assist controls, or tactical lights demand clearance. Common applications include precision rifle builds, patrol-ready AR carbines, and competition platforms where every millimeter of real estate matters. The Troy low-profile gas block has become a standard choice among armorers and serious enthusiasts who prioritize fit compatibility and proven reliability in demanding duty cycles.
Troy Industries has maintained a reputation for manufacturing mil-spec components that meet exacting standards. The Manganese Phosphate finish provides excellent corrosion protection in humid and salt-air environments, ensuring the block performs consistently whether in a secure armory or deployed in field conditions. This gas block is a direct-fit replacement for original Troy components and integrates seamlessly into any 0.750-seat barrel platform.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
