Strike Industries red carbine pistol buffer tube has no wobble on the milspec castle nut. Each position locks positively into detent. Red anodize is bright and consistent. Threads correctly to a standard milspec castle nut.
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Strike Industries
Overview
The Strike Industries Carbine Length Pistol Buffer Tube is a Mil-Spec tube designed specifically for carbine setups, crafted from durable 7075-T6 aluminum and finished with a hardcoat anodized treatment for enhanced wear resistance. This assembly consists of the tube only, which provides the necessary interface for the buffer assembly and stock attachment, ensuring reliable cycling and stability in your AR-15 platform. This buffer tube is often found in builds utilizing a mid-length gas system chambered in 5.56 NATO, making it a solid choice for those setups.
Strike Industries Carbine Length Pistol Buffer Tube - Red
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Strike Industries Carbine Length Pistol Buffer Tube - Red was the third most added buffer tube on GunPartPicker in August 2026, behind the Geissele Automatics AR-15 Premium Buffer Tube Ddc, with about 10% of all buffer tubes added to builds. That's its 4th straight month at #3. Builds with this buffer tube are mostly chambered in 5.56 NATO (68%, then .223 Wylde 12%), split between mid-length (43%) and carbine-length (27%) gas systems, and mostly AR-15 (80%, then AR-10 20%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 2 of the 3 retailers we track have it in stock. It dipped to $45.99 at Optics Planet for a stretch in August 2026, under its usual $49.95, so sales do come around. Buying today, the lowest price is $44.96 at Optics Planet, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every buffer tube by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Tube Guide →The part most often added in each category by the 447 builds that include this one

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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Strike Industries Carbine Length Pistol Buffer Tube - Red
| Build | Parts | Total |
|---|---|---|
![]() | 22 | $1065.29 |
![]() | 13 | $1173.71 |
![]() | 31 | $7458.30 |
![]() | 29 | $3666.04 |
![]() | 30 | $5139.04 |
![]() | 28 | $1935.54 |
![]() | 20 | $997.92 |
![]() | 37 | $6634.63 |
![]() | 17 | $999.96 |
![]() | 14 | $1157.76 |
![]() | 19 | $2810.27 |
![]() | 30 | $3766.84 |
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Top reviews
Strike Industries red carbine pistol buffer tube has no wobble on the milspec castle nut. Each position locks positively into detent. Red anodize is bright and consistent. Threads correctly to a standard milspec castle nut.
Strike Industries red carbine length pistol buffer tube has no wobble at any of the positions. Red anodize is bright and even. Threads to a milspec castle nut. Five positions click positively. Unique color option for a pistol build.