Description
50 Round Drum HK91, G3, & PTR
The X-91 drum replicates the original HK G8 drum to give you 50 rounds of .308 in a compact, aluminum body. The X-91 utilizes X Products’ ultra-compact single-stack coil system, delivering smooth feeding, reduced overall height, and improved balance. The result is a drum that is easier to handle, easier to store, and more dependable under hard use.
The drum body is precision die-cast aluminum for maximum strength and weight reduction, while critical internal components are CNC billet machined for consistent tolerances and long-term durability. The follower system utilizes high-strength glass-filled nylon engineered to withstand heavy cyclic loading and prolonged storage while maintaining reliable cartridge alignment and feeding.
Because the X-91 uses a die-cast aluminum body, minor cosmetic surface pitting or texture variations may occasionally be visible. These are normal characteristics of the manufacturing process and do not affect function, reliability, or structural integrity in any way.
The X-91 is finished in a durable Cerakote ceramic coating that resists corrosion, abrasion, and harsh environmental conditions. Its self-lubricating internal design eliminates the need for oil or grease and allows the drum to remain loaded long-term without spring degradation or loss of reliability.
Compatible With:
- HK91, G3, PTR
- CETME (Some require minor fitting)
- In-spec. clones and custom builds
Features:
- 50-Round Capacity
- Compatible with 7.62×51 NATO / .308 Winchester
- Ultra-Compact Single-Stack Coil Design
- Precision Die-Cast Aluminum Body
- CNC Billet Machined Internal Components
- High-Strength Glass-Filled Nylon Followers
- Cerakote Ceramic Coated Finish
- Self-Lubricating / Lubrication-Free Operation
- Easy Loading Operating Wheel
- Easy Disassembly for Cleaning
- Designed for Long-Term Loaded Storage
- 100% Manufactured and Assembled in the USA
- Patented Tension Relief Device — Patent US8919022B2
- No-Hassle Lifetime Warranty
XS Products X-91 Drum Manual









