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Questions & Answers
is this large frame compatible?

This is for an ar-15 barrel with a .750 diameter barrel

by Jer, Verified Owner, June 5, 2025
Show In Stock Only
14 Models Available
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Product Info for Superlative Arms Adjustable Gas Block DI Builders Kit

In this kit you will get a Superlative Arms adjustable gas block with their Patented Bleed Off Mode and Patented Exterior Locking Detent for the adjustment screw, completed with a pre-installed 304 Stainless Steel gas tube in Melonite (for greater heat and corrosion resistance), and the new Superlative Arms direct impingement DLC (Diamond-like Coating) bolt carrier (bolt, cam pin, firing pin, and firing pin retainer NOT INCLUDED). The Superlative Arms bolt carrier is compatible with all AR-15 bolts and this kit gives the end-user the freedom to choose their own bolt to match their preferred cartridge.image

The Superlative Arms direct impingement bolt carrier is made from 8620 steel featuring a chrome lined bore (as per mil spec) with enhanced machining and a superior DLC coating; offering greater lubricity, less friction, and easier cleaning. To top off the carrier, we mounted a DLC gas key using OCKS (Optimized Carrier Key Screws) by Ned Christiansen resulting in the best possible staking and screw retention.

Note: The DLC color, tint, and tone will vary from lot to lot, can and will be slightly different than photos.

Superlative Arms manufactures all gas blocks and carriers in-house to meet or exceed mil-spe

Specifications for Superlative Arms Adjustable Gas Block DI Builders Kit:

Manufacturer: Superlative Arms
Color: Black
Coating: QPQ
Fabric/Material: Steel 416 Stainless/8620/4130/304 SS
Gun Make: AR Platform
Gun Model: AR-10, AR-15
Condition: New
Gas Block Journal Size-Length: 1 in
Finish: Dark DLC

Features of Superlative Arms Adjustable Gas Block DI Builders Kit

  • The pressure used in the block is reduced only to the amount required to drive the bolt carrier. The remaining gas and pressure are bled out of the block allowing the system to run much cleaner and cooler.
  • Reduction of wear on the bolt carrier group components and upper receiver.
  • Reduction of felt recoil allowing for faster follow-up shots.
  • Patented adjustment detent is located outside of the block and therefore no contamination.
  • In Bleed Off Mode the gas adjustment screw does not restrict the gas flow; therefore, there is no erosion or seizing of the screw, and 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 SBRs and/or suppressors the Bleed Off port allows the excessive pressure to be exhausted out of the block reducing blow back.

Package Contents:

  • Superlative Arms Adjustable Gas Block DI Builders Kit
  • DI Gas Block with Gas Tube Installed
  • DI Carrier (no bolt assembly)
  • 3/32 x 6in L-Shaped Hex Key Ball-end Torx T-15 Tool
  • Installation/Adjustment Instructions

Superlative Arms Adjustable Gas Block DI Builders Kit Orderable Models

List of Orderable Models

Superlative Arms Adjustable Gas Block DI Builders Kit, .750in Clamp On, Melonite, QPQ, DI Gas Block, Carbine Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-CM750CM , MPN: SABO-DI-RFD-CM750CM , UPC: 850051342020 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-CM750CM
Superlative Arms Adjustable Gas Block DI Builders Kit, .750in Solid, Set Screw, Melonite, QPQ, DI Gas Block, Pistol Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-PM750SM , MPN: SABO-DI-RFD-PM750SM , UPC: 850011846995 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-PM750SM
Superlative Arms Adjustable Gas Block DI Builders Kit, .750in Clamp On, Melonite, QPQ, DI Gas Block, Pistol Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-PM750CM , MPN: SABO-DI-RFD-PM750CM , UPC: 850011846988 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-PM750CM
Superlative Arms Adjustable Gas Block DI Builders Kit, .750in Solid, Set Screw, Melonite, QPQ, DI Gas Block, Carbine Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-CM750SM , MPN: SABO-DI-RFD-CM750SM , UPC: 850051342037 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-CM750SM
Superlative Arms Adjustable Gas Block DI Builders Kit, .750in Clamp On, Melonite, QPQ, DI Gas Block, Rifle Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-RM750CM , MPN: SABO-DI-RFD-RM750CM , UPC: 850051342105 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-RM750CM
Superlative Arms Adjustable Gas Block DI Builders Kit, .750in Solid, Set Screw, Melonite, QPQ, DI Gas Block, Rifle Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-RM750SM , MPN: SABO-DI-RFD-RM750SM , UPC: 850051342112 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-RM750SM
Superlative Arms Adjustable Gas Block DI Builders Kit, .750in Clamp On, Melonite, QPQ, DI Gas Block, Mid Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-MM750CM , MPN: SABO-DI-RFD-MM750CM , UPC: 850051342068 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-MM750CM
Superlative Arms Adjustable Gas Block DI Builders Kit, .750in Solid, Set Screw, Melonite, QPQ, DI Gas Block, Mid Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-MM750SM , MPN: SABO-DI-RFD-MM750SM , UPC: 850051342075 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-MM750SM
Superlative Arms Adjustable Gas Block DI Builders Kit, .625in Clamp On, Melonite, QPQ, DI Gas Block, Mid Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-MM625CM , MPN: SABO-DI-RFD-MM625CM , UPC: 850051342044 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-MM625CM
Superlative Arms Adjustable Gas Block DI Builders Kit, .625in Clamp On, Melonite, QPQ, DI Gas Block, Carbine Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-CM625CM , MPN: SABO-DI-RFD-CM625CM , UPC: 850051342006 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-CM625CM
Superlative Arms Adjustable Gas Block DI Builders Kit, .625in Clamp On, Melonite, QPQ, DI Gas Block, Rifle Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-RM625CM , MPN: SABO-DI-RFD-RM625CM , UPC: 850051342082 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-RM625CM
Superlative Arms Adjustable Gas Block DI Builders Kit, .625in Solid, Set Screw, Melonite, QPQ, DI Gas Block, Rilfe Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-RM625SM , MPN: SABO-DI-RFD-RM625SM , UPC: 850051342099 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-RM625SM
Superlative Arms Adjustable Gas Block DI Builders Kit, .625in Solid, Set Screw, Melonite, QPQ, DI Gas Block, Mid Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-MM625SM , MPN: SABO-DI-RFD-MM625SM , UPC: 850051342051 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-MM625SM
Superlative Arms Adjustable Gas Block DI Builders Kit, .625in Solid, Set Screw, Melonite, QPQ, DI Gas Block, Carbine Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-CM625SM , MPN: SABO-DI-RFD-CM625SM , UPC: 850051342013 , Code: 4RX-RGB-ADGB-SABO-DI-RFD-CM625SM

Superlative Arms Adjustable Gas Block DI Builders Kit Unavailable & Discontinued Models

List of Unorderable Models

USED, Superlative Arms Adjustable Gas Block DI Builders Kit, .750in Clamp On, Melonite, QPQ, DI Gas Block, Rifle Length, Melonite Gas Tube, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-DI-RFD-RM750CM , MPN: SABO-DI-RFD-RM750CM-EDEMO , Code: 4RX-RGB-ADGB-SABO-DI-RFD-RM750CM-EDEMO-RE-C
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