Q&A for Sniper AR-15 Extended Pistol Buffer Tube Kit

Sniper AR-15 Extended Pistol Buffer Tube Kit

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Biker Bob, member, from NE, United States, asked on September 24, 2024

Gather this would be the correct kit for an AR15 9mm pistol

Manufacturer Answer

Answered by Charles Shi, Manufacturer from CA, United States, on January 08, 2025

No, it is for .223 AR15 pistol. 9mm, the buffer is different.

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Jake, member, from FL, United States, asked on June 24, 2021

What is the TOTAL length of the tube

Expert Answer

Answered by Ethan, Gear Expert, from IL, United States, on April 11, 2022

The Sniper AR-15 Extended Pistol Buffer Tube Kit is 9.3" in length and includes the buffer, spring, sling plate, and locking nut.

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WildThingRick87, member, from NC, United States, asked on July 23, 2026

Would the brace that comes with PSA AR pistol lowers work with this tube? Want to legally put a vertical foregrip on my 10.5 without form..

Manufacturer Answer

Answered by Charles Shi, Manufacturer from CA, United States, on August 05, 2026

Yes—if your PSA AR pistol lower came with a standard adjustable brace (such as an SBA3, SBA4, SBA5, or PSA's H&R brace or Presma AAST18 AAST17), it should work with the Presma AS5P06 AR-15 Carbine Buffer Tube Kit, provided the kit uses a mil-spec 6-position carbine buffer tube, which is the industry standard for these braces.

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LukeSW, member, from NV, United States, asked on June 03, 2026

What brace fits this tube?

Manufacturer Answer

Answered by Charles Shi, Manufacturer from CA, United States, on June 10, 2026

https://www.opticsplanet.com/presma-ar-pistol-stabilizing-fin.html

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LukeSW, member, from NV, United States, asked on June 03, 2026

Is there any butt stocks that fit this pistol buffer tube? Could you please leave a reference to any stocks available.

Manufacturer Answer

Answered by Charles Shi, Manufacturer from CA, United States, on June 10, 2026

https://www.opticsplanet.com/presma-ar-pistol-stabilizing-fin.html

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Jason Kurtz, member, from KS, United States, asked on May 15, 2026

will the sb5 work with this tube?

Manufacturer Answer

Answered by Charles Shi, Manufacturer from CA, United States, on May 20, 2026

No. SB5 is for 6 position mil-spec buffer tube.

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Joe, member, from ID, United States, asked on February 04, 2026

What is the outside diameter of the thickest part of the tube?

Manufacturer Answer

Answered by Charles Shi, Manufacturer from CA, United States, on February 11, 2026

The outside diameter of the tube is 1.25".

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Cyborg911, member, from NJ, United States, asked on January 19, 2025

Will this tube work on a 300 blackout?

Manufacturer Answer

Answered by Charles Shi, Manufacturer from CA, United States, on February 12, 2025

Yes, it works.

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Barry-Paul, member, from NJ, United States, asked on October 13, 2024

weight please ?

Manufacturer Answer

Answered by Charles Shi, Manufacturer from CA, United States, on February 19, 2025

Total 13.5 oz.

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FrostyTentacles, member, from MI, United States, asked on April 29, 2024

will a sba3 stock fit on this buffer? looking for a little more length in my stock the 6 position mil spec tube's make me feel all crunched up

Manufacturer Answer

Answered by Charles Shi, Manufacturer from CA, United States, on March 28, 2025

The SB Tactical SBA3 brace is designed to be compatible with any mil-spec carbine receiver extension (buffer tube).
mmcarmory.com
+3
SB Tactical
+3
righttobear.com
+3

The Presma AR-15 Carbine Buffer Tube Kit includes a 9.3-inch round buffer tube with an outer diameter of 1.25 inches. This diameter exceeds the standard mil-spec diameter of 1.148 inches, which suggests that the Presma buffer tube is likely a commercial-spec tube rather than mil-spec. Since the SBA3 brace is designed for mil-spec tubes, it may not fit properly on the Presma buffer tube due to the larger diameter.
AT3 Tactical

Regarding your concern about the length of pull (LOP), standard 6-position mil-spec buffer tubes typically offer an LOP ranging from approximately 10 inches (fully collapsed) to 13 inches (fully extended). If you find this range too short, consider exploring stocks or braces that provide a longer LOP.

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Q&A for Sniper AR-15 Extended Pistol Buffer Tube Kit — 14 Questions & 17 Answers