PDW E-Series Heavy Buffer

Question

Q: Will this work with the HBPDW brace? If so what spring would you suggest or will the factory spring be ok.

Asked by: Oscar - 6/27/2026

Q: I have an 8inch 300 BLK with the maxim defense pdw pistol brace. I have repeated stove pipe issues when running the standard H1 buffer and shooting subsonincs. Would the heavier buffer help with that?

Asked by: Steven - 5/23/2026

Q: Hi, I am working on a ar15 pistol in 300 blackout, with a SB Tactical hbpdw brace, and a frt. Which buffer do recommend for this pistol? Thank you for your assistance

Asked by: Mike Marineau - 5/8/2026

Q: What are the weights of your H2 and E buffers?

Asked by: Jim O - 4/12/2026

Q: When will it be back in stock

Asked by: Montgomery Loe - 4/4/2026

Q: Is this compatible with the SB Tactical HBPDW brace?

Asked by: Jacob Higgins - 10/11/2025

Q: Is this compatible with Strike Industries Short AR Pistol Buffer Tube Kit?

Asked by: B - 7/21/2025

Q: Any chance these work in HBPDW braces?

Asked by: Braxton - 7/16/2025

No Answers have been submitted yet.

Q: What's the compatibility of this buffer with KAK Industries' Mini Mil-spec system?

Asked by: Kilroy - 8/15/2024

Q: Will this work on the LMT MARS PDW?

Asked by: Tony - 3/17/2024

Questions about this item? Ask here.

Accepted Answer

The PDW spring and buffers are compatible with the SB HBPDW brace. Spring is dependent on what you are using this for. We recommend the PDW standard spring for all calibers. We recommend the PDW light spring for use with 300BLK subs.

Accepted Answer

You can try the E-Series Heavy buffer and our PDW Light Spring we designed for use in 300BLK subsonic use. If it runs reliably with supersonic with no stove piping issues the light spring is probably the fix with subs. You can call Charles for more technical support.

Accepted Answer

E Heavy with light spring for 300BLK if you are running it with subsonic ammo. The feedback we have been getting back with customers is to get 100% reliability they have been running our buffer/spring and Enhanced Bolt Carrier with buffer technology that prevents carrier bounce.

Accepted Answer

We are no longer making the PDW H2 Buffer weight. E-Series Heavy Buffer and Spring (The Heavy now features a black bumper) is our new and improved E-Series 4oz. Heavy Buffer. Due to the design of acting as a dead blow hammer we can make it lighter than the PDW H2 (4.6oz) and create a better product in how it gradually shifts the weight inside the buffer creating a smoother feel over a one piece tungsten that slams all at once. With lots of R&D and being the patent holder of the PDW Buffer/Springs we are shifting to what we feel is superior in performance which is now our PDW E-Series Buffers. It has replaced the PDW H2 buffer. We have a video on our Bolt Carrier Page that shows Charles running our BCG with the E-Series 3 oz buffer running an FRT and runs fine and our E-Series Heavy is 4 oz.https://www.blackriflearms.com/ENHANCED-BOLT-CARRIERS-_c_10.html

Accepted Answer

We will be listing them today. We no longer making the PDW H2 Buffer weight, but replacing them with our new E-Series Heavy Buffer and Spring (The Heavy now features a black bumper) is our new and improved E-Series 4oz. Heavy Buffer. Due to the design of acting as a dead blow hammer we can make it lighter than the PDW H2 (4.6oz) and create a better product in how it gradually shifts the weight inside the buffer creating a smoother feel over a one piece tungsten that slams all at once. With lots of R&D and being the patent holder of the PDW Buffer/Springs we are shifting to what we feel is superior in performance which is now our PDW E-Series Buffers. It has replaced the PDW H2 buffer. We have a video on our Bolt Carrier Page that shows Charles running our BCG with the E-Series 3 oz buffer running an FRT and runs fine and our E-Series Heavy is 4 oz.https://www.blackriflearms.com/ENHANCED-BOLT-CARRIERS-_c_10.html

Accepted Answer

Not by itself. You need the PDW Spring and Buffer: https://www.blackriflearms.com/Enhanced-Buffer-Spring-Assemblies-for-Maxim-CQB-SB-Honey-Badger-PDW-Stocks-Braces-Mini-Shockwave-2M-Pistol-Brace_p_625.html

Accepted Answer

No, Strikes Viper and Blade PDW Stocks require our kit: https://www.blackriflearms.com/Enhanced-Compact-Buffer-Tube-Spring-Buffer-Assemblies-for-Viper-PDW-Stocks-Braces--Gen-2_p_732.html

Accepted Answer

It's compatible but you would need to use our PDW Spring and buffer as Kak's spring is not compatible with our buffer.

Accepted Answer

Sorry for the delay in response. We have no testing with LMT PDW, if you like to send in the specs of LMT buffer and buffer tube and spring we might be able to assist you in a better answer.

PDW E-Series Heavy Buffer

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