Description
Battle Arms Development built the Workhorse .750 gas block to be the low profile block for the masses, and that reputation is well earned. It slides onto barrels with a standard .750" gas block journal and disappears under the vast majority of free float handguards on the market, so you are not fighting clearance issues on your build. At roughly 1.35 oz with hardware, it trims weight off the front end without giving up the reliability you want from the part that actually keeps your rifle running.
What Makes the Workhorse Gas Block Tick
This one is CNC machined from high grade steel and finished in corrosion resistant black nitride, so it handles heat and holds up to hard use. The set screws are spaced 0.5" apart, and Battle Arms gave the body a distinctive C-shaped profile that looks clean and functions well tucked inside a rail. Overall length runs about 0.938", keeping the footprint tidy on carbine, mid-length, and rifle-length gas systems alike.
Getting the Workhorse .750 Dialed In
Set screw blocks like this one are simple to install, but doing it right matters. Line the block up so the gas port sits directly under the port hole in the block, then snug the rear screw first. For the most secure hold, a lot of builders dimple the barrel under the rear set screw so the screw seats into the divot and cannot walk forward under recoil. Degrease the threads, add a quality thread locker, and torque the screws down evenly. Done that way, a set screw block will stay put through thousands of rounds.
Whether you are correcting a clearance problem with a bulky front sight base or starting a fresh upper from the barrel out, the Workhorse .750 is a no-drama choice from a shop that has been making solid small arms components since 2009. It is the kind of part you install once and forget about, which is exactly what you want from a gas block.
Key Specifications
- Manufacturer: Battle Arms Development
- Model: Workhorse
- Manufacturer Part Number: WH-GB-750
- UPC: 810033780370
- Product Type: Low Profile Gas Block
- Internal Diameter: 0.750"
- Material: Steel
- Finish: Black Nitride
- Color: Black
- Length: 0.938 in
- Weight: 1.35 oz (with screws)
- Set Screw Spacing: 0.5"
- Attachment Type: Set Screw
- Fits: AR-15 / AR-308 barrels with .750" journal
What’s Included
- (1) Workhorse Low Profile Steel Gas Block .750 – Black
- (2) Set Screws
- (1) Roll Pin
Frequently Asked Questions
Will the Workhorse .750 gas block fit under my handguard?
It was designed to fit under the majority of free float handguards on the market thanks to its slim low profile design and roughly 0.938" length. As long as your barrel has a standard .750" gas block journal, it should tuck in cleanly. If you are running an unusually tight or slim rail, double check your handguard's inner diameter to be safe.
Do I need to dimple my barrel to install this gas block?
Dimpling is not strictly required, but it is a smart move for a set screw block like the Workhorse. A dimple under the rear set screw gives the screw a divot to seat into, which keeps the block from walking forward under recoil. If you skip dimpling, use quality thread locker and torque the screws evenly for a secure hold.
What gas system lengths does the Workhorse .750 work with?
Since it is a plain low profile block, it works with carbine, mid-length, and rifle-length gas systems alike. The only thing that matters is matching the .750" journal diameter on your barrel and positioning the block so the port lines up correctly. The gas system length is determined by your barrel and gas tube, not the block itself.
Is the Workhorse gas block made from steel or titanium?
This Workhorse model is CNC machined from high grade steel with a corrosion resistant black nitride finish, which gives you durability and heat resistance at a great value. Battle Arms does offer a separate titanium version if weight savings is your top priority, but the steel Workhorse is the workhorse of the lineup for a reason.






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