The Q Rearend XL is a Quickie Fast‑Attach muzzle brake built for .338/8.6 BLK cartridges with a 5/8×24 thread. Scaled up from the original Rear End and designed to work with Q SHORT CHOP and PORQ CHOP suppressors.
The Rearend XL by Q LLC is a Quickie Fast‑Attach muzzle brake developed for .338 / 8.6 BLK applications. It is a scaled-up version of the original Rear End designed to handle the increased impulse of 8.6 BLK. The device is intended to integrate with Q’s shortened suppressor options and provide a fast, repeatable attachment point for suppressed setups. Typical uses include recoil management on big-bore precision platforms and suppressed precision or field shooting.
Product Specifications
The manufacturer is Q LLC.
The model is Rearend XL.
The product type is a Muzzle Brake.
The listed caliber/gauge is .338 Caliber.
The thread pattern is 5/8×24.
The attach system is described as Quickie Fast-Attach.
The device is identified as compatible with 8.6 BLK.
The Rearend XL is designed to run with Q SHORT CHOP and PORQ CHOP suppressors.
The product is categorized under Class 3 Parts & Accessories.
The product category/subcategory is Muzzle Devices / Muzzle Brake.
The UPC is 810152961452.
The Rearend XL provides a compact, fast-attach option for shooters running .338/8.6 BLK who want to integrate Q’s short suppressor ecosystem without adding a multi-step muzzle device. Its design supports suppressed shooting and recoil management on larger cartridges while keeping attachment and removal straightforward.
Disclaimer: Our e-commerce site uses stock images for item photography. In most cases, these are completely accurate however there are some cases where the image may not wholly reflect the item being purchased. It is your responsibility to verify the UPC of the item you are purchasing from us with the manufacturer to confirm you are placing an order for the correct item.
