Collected 2 sets of parts to build 2 variants. Decided to just do one :rolleyes:. Many of these parts are no longer commercially available in new condition. Ralph @ RDTS will build these for $6000 as an A1 or $7,200 as an E.

Very clean A1 short shroud and trunnion with E features. Perfect for a 21A1, 21E, or 23E build.
Complete 11 BCG and recoil rod assembly (with spare recoil spring)
11 magwell
Trigger housing weldment
Cocking tube support
Brand new HK German 21E cocking handle, spring, and pin
Brand new HK German A1 correct carry handle, axle pin, spring, and clips

Not looking to sperate at this time. Most of these parts I got from members and want to pass on the savings as a complete lot. $3,000 shipped and insured.