RCM HK21 Trunnion
When RCM set out to make a replacement trunnion for the venerable HK21, they started the process by putting a factory unit through rigorous destructive metal testing. The...
NOS MG3, MG42 ground Tripod with HK21 Adapters
This is a Lafette-style ground mount, dated "3/63," manufactured by DISA (Madsen) for use with MG42, MG3, and MG53 machine guns. Original Olive-green...
H&K HK21 (7.62x51/.308) Recoil Spring
New HK Factory HK21 triple braided recoil spring. Compatible with early HK21's manufactured by HK and FMP. The 21E requires a different spring...
HKP HK21 Drum Hanger
Our HK21 drum hanger is precisley machined from 4140 billet steel, heat-treated to 50 Rockwell, and parkerized for a durable finish. A lower cost alternative to the discontinued...