I have an FMP HK 21 sear host semi with the TSC Machine "E" upgrade modifications done to it. Has low mileage on it (less than 500 rounds). The bolt gap is .018 with standard rollers. Was a virgin FMP receiver when it was built. At least 97% condition, no claw marks. When you agree to buy I will make you a video showing that it runs with either belts or M60 links. I am the second owner.
It has the following features:
HK 21E reinforcement receiver rails
Clubfoot stock with heavy 21E 2-stage buffer installed
Double wound recoil spring
HK 21E #17 locking piece to delay roller unlocking & tame recoil
HK 21E carry handle
HK 21E front fore grip
TSC specially made heavy hammer spring in trigger pack to improve the firing pin strike of mil-surp hard ammo primers.
Excellent 17.7" chrome lined FMP barrel
FMP bipod and FMP feed mechanism
HK 50-round ammo box drum specially modified for attachment to the feed tray
FMP feed box specially slotted to accommodate the RDTS, TSC or HK factory 100 rnd feed box.
Matching finish steel SEF clipped and pinned grip with semi pack. (not in pic)
The following extras included:
15 fifty round belts. Two of which are joined into a 100 round belt.
3 starter tabs for the belts
Extra HK 21 bolt carrier
Extra HK 21 ejector
Spare HK 21 ratchet for feed mech
2 spare HK 21 feed guides for the feed mechanism top plate
HK21 spiral manual
1000 +/- M60 links
Used German belt loading machine in can.
German 250 round .308 ammo can.
$8000 shipped. Only trade looked at is an HK11.
The only problem with the gun is the rear sight lock down screw hole had been partially stripped prior to me owning it. The sight stays in place if you use lock-tite in the screw hole but it should be fixed the correct way. Thanx, Matthew.