i had my SP-89 3-lugged by S&H as well. 
They thread the outside of the barrel all the way to the triple frame, then screw the 3 lug adapter on and solder it into place.How do they actually attach the 3 lug to the barrel?
Also, is that some soft of laser on SP89? never seen anything like that... could you tell me some more?
http://www.hkpro.com/mp5k.htmDoesn't the barrel of a SP89 right at the front sight base, just like on a MP5K? I have glanced at a SP89 before but never looked inside the end of finger guard over the muzzle. If the barrel ends flush at the front sight base, there is no barrel to thread?
I spoke to Curtis and he explained that he could weld onto the end of the sp89 barrel and attach the 3-lug adapter. You are right in that the sp89 barrel ends flush at front sight. I don't think anyone else is converting the sp89 barrels to 3-lug.Doesn't the barrel of a SP89 right at the front sight base, just like on a MP5K? I have glanced at a SP89 before but never looked inside the end of finger guard over the muzzle. If the barrel ends flush at the front sight base, there is no barrel to thread?
As does every MP5k and SP89 I've ever seen. Not too difficult to remove before a refinish, however.Raymond-
My sp89 will not allow the A3 style stock due to side plates and need for two rear pins ...
- mill off side plates and refinishRaymond-
My sp89 will not allow the A3 style stock due to side plates and need for two rear pins ... what was done to yours besides the bbl / adptr conversion?
Doesn't the barrel of a SP89 right at the front sight base, just like on a MP5K? I have glanced at a SP89 before but never looked inside the end of finger guard over the muzzle. If the barrel ends flush at the front sight base, there is no barrel to thread?
The short adapters are still $120.00 each shipped and the regular ones are still $95.00 each shipped. Both are in stock ready to ship.
Send me your number and a time to call if you want to place a credit card order. Or you can send a MO to:
SubCal Marketing llc
1818 N. 105th E. Ave. suite A
Tulsa, OK 74021