AR-15 Adj Piston System .625" Pistol Clamp On Melonite
Superlative Arms · Accessories
No ratings yetBest price
$260.99at Brownells
not checked recently
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $260.99not checked recently | Check store | Buy at Brownells | |
| OpticsPlanet | $260.99Salechecked Oct 1, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $260.99 | $260.99 | $260.99 |
Since Sep 28, 2026.
About this part
The AR-15 Adj Piston System .625" Pistol Clamp On Melonite is an accessory from Superlative Arms. It's sold by 2 stores, all at $260.99.
Specifications
- Manufacturer
- Superlative Arms
- Platform
- AR-15
- Length
- 625
From the manufacturer
The Superlative Arms patent pending “Bleed Off”, direct impingement, gas block for the AR15 platform adjusts the gas flow by bleeding the gas out of the block instead of restricting the flow like conventional adjustable blocks.
Results:
- The pressure used in the block is reduced only to the amount required to drive the bolt carrier. The remaining gas / pressure are bled out of the block allowing the system to run much cleaner and cooler.
- Reduction of felt recoil.
- Patented adjustment detent is located outside of the block and therefore no contamination.
- The gas adjustment screw does not restrict the gas flow; therefore there is no erosion or seizing of the screw / no loss of detent due to carbon build up. Although it is removable, we have added a safety mechanism, which stops you from unintentionally backing the screw all the way out.
- When using SBR’s and / or suppressors the bleed off port allows the excessive pressure to be exhausted out of the block reducing blow back.
DATA:
- Firearm Type: AR15
- Gas Length: Pistol, Carbine, Mid-Length, and Rifle
- Barrel Diameter: 0.625"
- Weight: 12.7 oz.
- Piston Block Attachment Type: Clamp On, Socket Head Cap Screws
- Piston Block Material and Finish: 416 SS, Melonite
- Carrier: Ion Bonded, 1 pc. Carrier w/ Skis and Dimpled Key
- Gas Adjustment: 30 Locked Positions, Front Of Block
- Bleed Off Port: Front Of Block
INCLUDED:
- Piston Block Assembly
- Carrier (bolt not included).
- (1) 3/32" X 6" Hex Key (tool to adjust gas screw)
- (1) 9/64" X 6" Hex key (tool to install/remove gas block plug)
- (1) Bushing and insert tool
- Installation Instructions & QR Code For Video Tutorial
Big Book Catalog, Issue:70, Page:016
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