Vltor Rcvr Ext Ar-10/A5 S Rail 6 Pos

The Vltor Receiver Extension for AR-10/A5 with S-Rail and 6-position adjustment is a modular buttstock solution built for shooters who demand compatibility with both AR-10 and A5-pattern receivers. This extension connects your upper and lower with a solid platform for shouldering, while the 6-position adjustment lets you dial in length of pull for your body armor, gear loadout, or shooting position—critical for tactical applications, hunting in heavy kit, and precision rifle work.

Vltor Weapon Systems engineered this receiver extension to work seamlessly in the AR-10 platform, where stock choices can be limited. The S-Rail design integrates rail segments for mounting accessories, so you're not locked into a bare tube. Whether you're running a precision optic-heavy build or a duty-configured AR-10, the modular approach means you upgrade your cheek rest or add a light mount without replacing the entire extension.

Six positions of adjustment give you flexibility across different shooting scenarios—prone work, benchrest, or standing engagements—without the guesswork of fixed-length tubes. Install is straightforward on any compatible AR-10 receiver, and the robust construction typical of Vltor's line means this extension will cycle and lock up reliably through years of shooting, whether you're breaking in a new build or upgrading an older platform.

Key Features

• Designed for AR-10 and A5-pattern receivers
• Six adjustable positions for customized length of pull
• S-Rail design allows accessory attachment and customization
• Modular construction for easy upgrades and configuration
• Robust engineering for reliable cycling and locking

Specifications

Frequently Asked Questions

Will this receiver extension fit my AR-10?

Yes, the Vltor Receiver Extension is designed for AR-10 and A5-pattern receivers. Confirm your lower receiver uses the A5-compatible buffer tube interface before ordering.

Can I adjust the length of pull?

Yes, the extension offers six adjustable positions, allowing you to customize length of pull for different gear configurations, body armor, or shooting positions.

What is the S-Rail and how does it help?

The S-Rail is an integrated rail design that allows you to attach accessories directly to the extension—such as sling mounts, cheek rests, or lights—giving you more flexibility than a standard smooth tube.