HK PARTS AND ACCESSORIES FOR SALE
New MM 21e trunnion
This will fit a 21 as well. No longer for sale
Gently used semi stripped HK11 bolt head IC date coded. $499
Unicorn find should be good to make an 11e conversion kit possible or for your 11 build. Selling it for less than what I have into it at $499. My loss is your gain...