MasterPiece Arms 308PMR ACC Bundle: Muzzle Brake, Vertical Grip, V4 Spigot Mount & Bag Rider for 308 Win PMR
- Caliber-Gauge:
- 30 Caliber
- Grip Type:
- Vertical
The MasterPiece Arms 308PMR ACC Bundle equips your precision rifle with a complete accessory package designed for shooters who demand modular, field-proven upgrades. Whether you're building a dedicated long-range rig, upgrading a competition gun, or fine-tuning a hunting platform, this bundle delivers the core attachments that serious 308 Winchester shooters rely on—muzzle brake, vertical grip, mounting system, and bag support all in one package.
MasterPiece Arms built their reputation on precision rifle stocks and accessories that handle real-world use. This bundle reflects that philosophy: each component is engineered to integrate seamlessly with the PMR platform and work together as a cohesive system. You get the muzzle brake for recoil management, a vertical grip for control and consistency, a V4 spigot mount for accessory compatibility, and a bag rider that anchors your rifle to a shooting bag or rest for stable, repeatable firing positions.
Rather than source these pieces individually and gamble on compatibility, the bundle approach saves you the guesswork and ensures every part is validated to work with your 308PMR. If you're setting up a new rifle or rounding out an existing build, this is a smart, coordinated upgrade path.
Key Features
- Muzzle brake included—reduces recoil for faster sight recovery and follow-up shot accuracy
- Vertical grip for improved control and ergonomic support during firing
- V4 spigot mount—provides standardized accessory rail compatibility
- Bag rider attachment—stabilizes the rifle against shooting bags or rests for bench and field precision
- Designed and validated for 308 Win PMR platform—modular, integrated system
Specifications
| Caliber/Platform | 308 Winchester PMR |
| Bundle Contents | Muzzle brake, vertical grip, V4 spigot mount, bag rider |
| Manufacturer | MasterPiece Arms |
Frequently Asked Questions
Will this bundle fit my MasterPiece Arms 308PMR?
Yes. This accessory bundle is designed and validated for the 308 Winchester PMR platform. Each component is engineered to integrate with the PMR system.
What's the purpose of the bag rider?
The bag rider attachment allows you to anchor your rifle to a shooting bag or rest, stabilizing the gun for more consistent, repeatable shots on the range or in the field. It's a common upgrade for precision and long-range shooting.
Can I use these accessories on other rifles?
The V4 spigot mount and bag rider may have broader compatibility, but we recommend confirming fitment with the manufacturer before use on non-PMR platforms. The muzzle brake and vertical grip are validated for the 308 Win PMR.
Do I need gunsmithing to install this bundle?
Installation varies by component. We recommend consulting the manufacturer's instructions and considering professional installation if you're unfamiliar with accessory mounting. Contact us if you have specific installation questions.

