WINNING! Seekins 6ARC for PRS

Published on October 25, 2025
Duration: 9:04

This video provides a detailed breakdown of a Seekins DMR rifle chambered in 6mm ARC, built for Precision Rifle Series (PRS) competition. The presenter, Justin, highlights key components and modifications that contributed to winning PRS Gas Gun matches, emphasizing the importance of a rigid handguard attachment, a quality barrel, and an adjustable gas block for smooth shooting and recoil management. The build features a Bartlein 6mm ARC barrel, Superlative Arms adjustable gas block, and a Boss Top Shot suppressor, all contributing to the rifle's performance.

Quick Summary

The Seekins DMR upper receiver is optimized for PRS by having its handguard attachment machined directly into the receiver, preventing point-of-impact shifts from handguard pressure. This, combined with a 26-inch Bartlein 6mm ARC barrel, an adjustable gas block, and a lightweight trigger, contributes to the rifle's winning performance in competition.

Frequently Asked Questions

What makes the Seekins DMR upper receiver suitable for PRS?

The Seekins DMR upper receiver is ideal for PRS because its handguard attachment point is machined directly into the receiver. This design prevents any point-of-impact shifts that can occur when pressure is applied to the handguard, ensuring consistent accuracy during competition.

How does the 6mm ARC cartridge perform in a PRS build?

The 6mm ARC cartridge, especially when paired with a 26-inch Bartlein barrel and handloaded ammunition, offers excellent performance for PRS. It provides manageable recoil, good accuracy potential (consistently sub-MOA with handloads), and is more affordable to reload for than some other precision cartridges.

What trigger is recommended for a competitive gas gun build?

For competitive gas gun builds like this Seekins DMR, a lightweight, crisp trigger is essential. The presenter upgraded to a TriggerTech Diamond trigger, set to 1.5 lbs, which significantly improves the ability to break shots quickly and cleanly under pressure.

Why is an adjustable gas block important for a 6mm ARC PRS rifle?

An adjustable gas block, like the Superlative Arms model used, is crucial for fine-tuning the rifle's performance. It allows adjustment of the dwell time and gas volume, leading to smoother cycling, reduced felt recoil, and overall more consistent shooting, which is vital in PRS matches.

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