[chopperduke]

I've been contemplating building an SP89 clone w/ reverse stretch. Here's the thing, I have NO idea where to begin or what I need. I've been looking and reading but I'm still pretty confused. I know I can buy the BA89K for less than $1100, so that's always a possibility.

So, school me please!

 

[JTinIN]

For discussion, why build a reverse stretch from a BA89K, instead put the extra money to another stock (ACE, B&K and/or Flemming adapter)? Of course I am slightly biased, being old school and having just MP5 and MP5K (ok they are sear guns ;-).

If one was going to build a reverse stretch, would be best to talk to Ghilliebear, Dakota Tactical or anyone of the guys and see what a custom build costs and recommendations (a custom build maybe less than you think after figure in the replacement parts and work on the BA89K), plus I suspect that they are starting with a full size MP5 flat and going shorter in the front, vs adding on in the rear.