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Superlative Arms .875″ Adjustable Bleed Off Gas Block – Black Melonite

UPC: 850011846100

$94.99

35 in stock

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Description

Most adjustable gas blocks work by restricting gas flow, which sounds fine until carbon builds up on the adjustment screw and you lose your setting. Superlative Arms flipped that idea on its head with their patented Bleed Off design. Rather than pinching the gas down, this block vents the extra pressure out the front, using only what's needed to drive the bolt carrier and sending the rest away from you. The payoff is a rifle that stays cleaner, runs cooler, and kicks less, which adds up to faster follow-up shots and a longer life for your BCG and upper.

What Makes the Superlative Arms Bleed Off Block Different

Because the adjustment detent sits on the outside of the block, it never sees the carbon and heat that plagues restrictive designs. That means no screw erosion, no seizing, and no losing your tune halfway through a range session. You get 30 locked positions to dial things in, and each one clicks into place instead of drifting loose over time. There's also a built-in safety stop so you can't accidentally back the screw all the way out while you're adjusting.

Fitting the .875" Adjustable Gas Block to Your Build

This is the .875" journal version in a solid, set-screw configuration with the black Melonite QPQ finish over a 416 stainless steel body. It works across AR-15, AR-10, and LR-308 platforms and plays nice with pistol, carbine, mid-length, and rifle-length gas systems. The low-profile shape tucks under most free-float handguards, and the set screws lock it down onto a dimpled barrel journal for a solid hold.

Why the Bleed Off Design Shines on Suppressed and Short-Barrel Guns

Run a can or a short barrel and you already know the gas-to-the-face problem. Venting excess pressure forward instead of holding it back cuts down that blowback noticeably, which is exactly why suppressor and SBR builders reach for this block. It's equally at home on a precision rig or a high-volume range gun where you just want the thing tuned right and left alone.

Key Specifications

  • Manufacturer: Superlative Arms
  • Manufacturer Part Number: SABO-DI-875SM
  • UPC: 850011846100
  • Barrel Journal Diameter: .875"
  • Attachment Type: Solid, Set Screw
  • Material: 416 Stainless Steel
  • Finish: Melonite QPQ, Black
  • System Type: Direct Impingement, Bleed Off Adjustable
  • Gas Adjustment: 30 locked positions, front of block
  • Weight: 1.80 oz
  • Length: 1.00"
  • Platform Compatibility: AR-15 / AR-10 / LR-308
  • Gas System Compatibility: Pistol, Carbine, Mid-Length, Rifle-Length

What’s Included

  • Assembled gas block
  • (2) 10-32 x 1/4" set screws
  • (1) gas tube roll pin
  • (1) 3/32" x 6" L-shaped ball-end hex key / Torx T-15 tool
  • Installation and setup instructions

Frequently Asked Questions

How is the bleed off design different from a regular adjustable gas block?

Conventional adjustable blocks restrict the gas flow to reduce pressure, which lets carbon collect on the adjustment screw over time. The Superlative Arms block instead bleeds the excess gas out the front, so it only uses the pressure needed to cycle the bolt and vents the rest away. Because the adjustment detent lives outside the block, it avoids the carbon fouling and screw seizing that plague restrictive designs.

Will this .875" gas block fit my barrel?

This version is built for a .875" gas block journal, so measure your barrel at the gas block seat before ordering. It's the solid, set-screw style, which works best on a dimpled barrel where the set screws can lock into place. It fits AR-15, AR-10, and LR-308 barrels and tucks under most free-float handguards.

Is this gas block good for a suppressed rifle or SBR?

It's one of the go-to choices for exactly that. The bleed off port exhausts excess pressure out the front and away from the operator, which cuts down the extra blowback you get when running a can or a short barrel. Being able to dial in 30 locked positions lets you tune out over-gassing so the gun runs comfortably.

What comes in the box and do I need extra tools to install it?

It ships assembled with two set screws, a gas tube roll pin, an L-shaped hex/Torx tool, and setup instructions. The included tool handles the adjustment, and once you find your setting each position clicks in and holds. You'll want to tune it with the muzzle device on and the handguard off so you can reach the adjustment screw and confirm the bolt locks back on an empty mag.

Additional information

UPC

850011846100

Manufacturer

Manufacturer Part Number

SABO-DI-875SM

Style

Adjustable

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