





Availability: In Stock
The JK Armament JK155LTA203 booster and 3-lug adapter is a precision-engineered component designed for shooters who need reliable mounting flexibility and suppressor compatibility. This aluminum adapter features 1.203x28 TPI threads and a 1.55-inch diameter, making it a practical choice for hosts that require quick-change or three-lug mounting systems. Whether you're building a suppressed rifle setup or adapting existing hardware to work with different mounting patterns, this booster provides the interface needed to bridge your barrel threads to standard lug configurations.
Built from black aluminum, the JK155LTA203 delivers the durability and corrosion resistance you'd expect from purpose-built firearms hardware. The engineering behind JK Armament's components reflects a focus on functional precision—no unnecessary bulk, no marketing fluff, just solid construction that works. For shooters standardizing on 3-lug mounts or running multiple hosts with different thread pitches, this adapter eliminates the need to buy new suppressors or compromise on fit.
If your suppressor collection or host rifles use 3-lug mounting, or if you're assembling a precision rifle platform that benefits from quick-change flexibility, this booster belongs in your parts bin. It's the kind of accessory that sits in the background and does its job without complaint—the mark of thoughtful firearms design.
| Brand | JK Armament |
| Model | JK155LTA203 |
| Thread Pattern | 1.203x28 TPI |
| Mount Type | 3-Lug |
| Diameter | 1.55 inches |
| Material | Black Aluminum |
The JK155LTA203 is threaded for 1.203x28 TPI barrels, allowing you to mount a 3-lug suppressor or accessory on hosts with that specific thread pattern.
Yes, the booster features a 3-lug mounting interface, making it compatible with standard 3-lug suppressors and accessories.
The JK155LTA203 booster and 3-lug adapter is sold as specified; check the product listing for any included hardware or documentation.

SKU: 200188268