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Questions & Answers
Is this a conversation kit or only for already existing piston system guns

This appears to be a conversion kit from DI to Gas piston operation.

by Teck, Verified Owner, December 15, 2024
Do you have chome bolt carriers

From all the research I have done, it looks SA only offers this kit with a black coated bolt carrier.

by Bryan, Verified Owner, July 6, 2022
Customer Reviews
Helpful Positive Review
Amazing product by Zac, September 2, 2022
I have had this system in my AR for a few years now and I have put a couple thousand rounds threw the rifle with zero problems. My rifle runs cleaner and cooler. All of my future builds will have this in them
9/9 found this helpful
Helpful Positive Review
Piston kit by Ryan, Verified Owner, March 9, 2025
Came as expected. This is my second one. Love it. I have had zero issues, none! Highly recommend
1/1 found this helpful
Helpful Positive Review
Works great by Alex, Verified Owner, March 21, 2025
I got this for a 12.5" SBR that was over-gassed like crazy, I didn't think an adjustable gas block would take enough of it out to be shootable as a lefty. I got this kit installed and I'm around 12-14 clicks in on the bleedoff adjustment from the adj...
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1/1 found this helpful
Helpful Positive Review
Testing of superlative arms piston system. by Varminter, Verified Owner, April 15, 2025
So I purchased this to run a 12.5" barrel AR-15 that I have suppressed.I have been using SA bleed off block for years and to incorporate that with this piston system was genius. I installed per instructions and after adjusting to 20 clicks out I have...
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1/1 found this helpful
Helpful Positive Review
It works as expected. by Bucknut45, Verified Owner, July 9, 2025
Item works as expected. Not happy with Optics Planet taking so long to ship the item. Their estimated shipping dates are never correct.
2/2 found this helpful
Helpful Positive Review
Built a quality .5 moa target rifle, and it turned into a daily. Unfortunately, just to dirty. Have an LWRC IC-SPR love how clean and accurate it is pretty much all the time, so I converted my build with this SA piston kit. Simple installation, fi...
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4/4 found this helpful
Read All 18 Reviews
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Product Info for Superlative Arms AR15 .750in Solid Adjustable Piston System

Manufactured to be described as a superb product for almost any individual, we are certain you'll enjoy the Superlative Arms AR15 .750in Solid Adjustable Piston System.image

Established working with some of the very most strong and long lasting resources available, these AR Gas Blocks from Superlative Arms offers you something that gives you numerous years of reliability.

Superlative Arms has been generating high quality products for a very long time, and the Superlative Arms AR15 .750in Solid Adjustable Piston System is their means of showing you how much they care.

Here at OpticsPlanet, we ensure that it is our obligation to get the perfect product for all of your needs, and showcasing the Superlative Arms AR15 .750in Solid Adjustable Piston System is one thing that we are pleased to offer.

Specifications for Superlative Arms AR15 .750in Solid Adjustable Piston System:

Manufacturer: Superlative Arms
Color: Black
Coating: Melonite QPQ
Fabric/Material: 416 Stainless Steel
Weight: 12.8 oz
Finish: Melonite QPQ

Features of Superlative Arms AR15 .750in Solid Adjustable Piston System

  • 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 AR15 .750in Solid Adjustable Piston System
  • Piston Gas Block
  • Piston Carrier (No Bolt assembly)
  • Op Rod
  • 9/64 x 6in L-Shaped Hex Key
  • 3/32 x 6" L-Shaped Hex Key Ball-End Torx T-15 Tool
  • Receiver Bushing
  • Bushing Installation Tool
  • Op Rod Spring
  • Installation/Adjustment Instructions
  • SA Sticker

Superlative Arms AR15 .750in Solid Adjustable Piston System Orderable Models

List of Orderable Models

  • Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Rifle Length Op Rod, Left Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-LFD-R750SM , MPN: SABO-PS-LFD-R750SM , UPC: 850051342662 , Code: 4RX-RGB-AP4-SABO-PS-LFD-R750SM
  • Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Pistol Length Op Rod, Left Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-LFD-P750SM , MPN: SABO-PS-LFD-P750SM , UPC: 850051342549 , Code: 4RX-RGB-AP4-SABO-PS-LFD-P750SM
  • Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Mid Length Op Rod, Left Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-LFD-M750SM , MPN: SABO-PS-LFD-M750SM , UPC: 850051342624 , Code: 4RX-RGB-AP4-SABO-PS-LFD-M750SM
  • Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Carbine Length Op Rod, Left Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-LFD-C750SM , MPN: SABO-PS-LFD-C750SM , UPC: 850051342587 , Code: 4RX-RGB-AP4-SABO-PS-LFD-C750SM
  • Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Rifle Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-R750SM , MPN: SABO-PS-RFD-R750SM , UPC: 850011846209 , Code: 4RX-RGB-AP4-SABO-PS-RFD-R750SM
  • Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Mid Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-M750SM , MPN: SABO-PS-RFD-M750SM , UPC: 850011846193 , Code: 4RX-RGB-AP4-SABO-PS-RFD-M750SM
  • Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Carbine Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-C750SM , MPN: SABO-PS-RFD-C750SM , UPC: 850011846179 , Code: 4RX-RGB-AP4-SABO-PS-RFD-C750SM
  • Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Pistol Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-P750SM , MPN: SABO-PS-RFD-P750SM , UPC: 850011846162 , Code: 4RX-RGB-AP4-SABO-PS-RFD-P750SM
  • USED, Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Mid Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-M750SM , MPN: SABO-PS-RFD-M750SM-EDEMO , Code: 4RX-RGB-AP4-SABO-PS-RFD-M750SM-EDEMO-US-C

Superlative Arms AR15 .750in Solid Adjustable Piston System Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Pistol Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-P750SM , MPN: SABO-PS-RFD-P750SM-EDEMO , Code: 4RX-RGB-AP4-SABO-PS-RFD-P750SM-EDEMO-RE-B
  • USED Superlative Arms .750in Solid, Set Screw, Mid Length, Retrofit Piston Kit for AR15 Platform, Melonited Piston Gas Block, DLC Carrier, Black, SABO-PS-M750SM, EDEMO2, Used, Condition Like New , MPN: SABO-PS-M750SM-EDEMO2 , Code: 4RX-RGB-AP4-SABO-PS-M750SM-EDEMO2
  • USED, Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Rifle Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-R750SM , MPN: SABO-PS-RFD-R750SM-EDEMO , Code: 4RX-RGB-AP4-SABO-PS-RFD-R750SM-EDEMO-US-C
  • USED, Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Mid Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-M750SM , MPN: SABO-PS-RFD-M750SM-EDEMO , Code: 4RX-RGB-AP4-SABO-PS-RFD-M750SM-EDEMO-RE-B
  • DEMO, Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Pistol Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-P750SM , MPN: SABO-PS-RFD-P750SM-DEMO , Code: 4RX-RGB-AP4-SABO-PS-RFD-P750SM-DEMO
  • USED, Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Carbine Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-C750SM , MPN: SABO-PS-RFD-C750SM-EDEMO , Code: 4RX-RGB-AP4-SABO-PS-RFD-C750SM-EDEMO-RE-B
  • USED Superlative Arms .750in Solid, Set Screw, Carbine Length, Retrofit Piston Kit for AR15 Platform, Melonited Piston Gas Block, DLC Carrier, Black, SABO-PS-C750SM, EDEMO3, Condition Fair, Other , MPN: SABO-PS-C750SM-EDEMO3 , Code: 4RX-RGB-AP4-SABO-PS-C750SM-EDEMO-OT-D
  • DEMO, Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Carbine Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-C750SM , MPN: SABO-PS-RFD-C750SM-DEMO , Code: 4RX-RGB-AP4-SABO-PS-RFD-C750SM-DEMO
  • DEMO, Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Mid Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-M750SM , MPN: SABO-PS-RFD-M750SM-DEMO , Code: 4RX-RGB-AP4-SABO-PS-RFD-M750SM-DEMO
  • DEMO, Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Rifle Length Op Rod, Right Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-RFD-R750SM , MPN: SABO-PS-RFD-R750SM-DEMO , Code: 4RX-RGB-AP4-SABO-PS-RFD-R750SM-DEMO
  • EDEMO Superlative Arms AR-15 .750in Solid Adjustable Piston System, Solid, Set Screw, Melonite, QPQ, Piston Gas Block, Carbine Length Op Rod, Left Hand, Full Auto, Dark DLC Carrier, Black, SABO-PS-LFD-C750SM, EDEMO1 , MPN: SABO-PS-LFD-C750SM-EDEMO1 , Code: 4RX-RGB-AP4-SABO-PS-LFD-C750SM-EDEMO1
  • DEMO, Superlative Arms .750in Solid, Set Screw, Pistol Length, Retrofit Piston Kit for AR15 Platform, Melonited Piston Gas Block, DLC Carrier, Black, SABO-PS-P750SM , MPN: SABO-PS-P750SM-DEMO , Code: 4RX-RGB-AP4-SABO-PS-P750SM-DEMO
  • Superlative Arms .750in Solid, Set Screw, Carbine Length, Retrofit Piston Kit for AR15 Platform, Melonited Piston Gas Block, DLC Carrier, Black, SABO-PS-C750SM , MPN: SABO-PS-C750SM , Code: 4RX-RGB-AP4-SABO-PS-C750SM
  • Superlative Arms .750in Solid, Set Screw, Pistol Length, Retrofit Piston Kit for AR15 Platform, Melonited Piston Gas Block, DLC Carrier, Black, SABO-PS-P750SM , MPN: SABO-PS-P750SM , Code: 4RX-RGB-AP4-SABO-PS-P750SM
  • Superlative Arms .750in Solid, Set Screw, Rifle Length, Retrofit Piston Kit for AR15 Platform, Melonited Piston Gas Block, DLC Carrier, Black, SABO-PS-R750SM , MPN: SABO-PS-R750SM , Code: 4RX-RGB-AP4-SABO-PS-R750SM
  • Superlative Arms .750in Solid, Set Screw, Mid Length, Retrofit Piston Kit for AR15 Platform, Melonited Piston Gas Block, DLC Carrier, Black, SABO-PS-M750SM , MPN: SABO-PS-M750SM , UPC: 3592216 , Code: 4RX-RGB-AP4-SABO-PS-M750SM
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