3D Gunworks Ruger 10/22 BX-1 MP5 Style Mag Base Extension
MP5-style magazine extension designed with a full 30-round length profile for improved ergonomics and classic SMG aesthetics. Features a new rear clamping design for enhanced mounting strength and stability compared to previous styles. Fits standard BX-1 pattern magazines.
Printed in durable ABS with heat-set metal threads and all required hardware included. No glue required.
Clean fit, solid lock-up, and consistent finish — built to match the durability and look customers expect.
Does not add capacity — for ergonomics and style only. Magazine not included.
Compatible with BX-1 magazines for:
10/22 rifle, SR-22 rifle, 22 Charger pistol, .22LR Ruger American Rimfire rifle, .22LR Ruger Precision Rimfire rifle, .22LR Ruger 77/22 rifle, TUF22, and Adler RF-224.
