Hello all
I may have news for this already quite old thread...
Today I have received my Ra Tech steel hammer set that I had ordered here:
http://www.boomarms.com/shop/item.cf.../curr_code/USD
Knowing this thread I measured the steel hammer against the WE one and also compared the height of the two. The two hammers I have are totally identical! Also the Ra Tech one because of having the same dimensions does not stick out higher out of the lower then the WE one did before. To me it looks like RaTech has slightly changed their hammer in the mean time. I do not have a steel bolt (yet) so I can't comment on this combo yet. I hope to get a WE Ra Tech steel bolt soon...the weapon is a WE XM177 open bolt.
cheers
Uwe