HK MR223 A3 Lower Parts Kit

H&K Heckler & Koch Lower Parts kit for your HK MR223

Factory HK lower parts kit for the MR223 platform—the ultimate choice for those seeking genuine factory German lower internal parts. This kit is essential for anyone looking to build an authentic 416A5 with top-quality components. Each kit comes complete with everything necessary to finish a lower for your next build or to serve as a comprehensive set of spares. Don't settle for anything less than the best!

*With code HKPARTS416 you will get 10% off and free shipping on any style lower if you order directly from STS.

Compatible With:

• HK MR223
• HK MR556 A4
• STS 416 A5 Lower

Includes:

• HK German grip
• HK German buffer tube
• HK German buffer spring
• HK German recoil buffer
• HK German magazine release
• HK German trigger
• HK German hammer
• HK German disconnector 
• HK German receiver end plate
• HK German ambi selector set
• HK Slimline stock - matching color stock