MRJ ,
I have one of the Bm62 that you speak of . What would you like to know about it? You are correct in that the stock has no cutout for the full auto connector as mostBM59 stocks do .You are also correvt in the rubber buttpad is a plain black rubber pad with no markings and no flip out for the cleaning kit . It is about 1/2" thick. For some reason the stock on mine does not seem as well done as the earlier ones . Mine was purchased used with 5 magazines ,1tricompesator(with bayonet lug) and the short straight muzzle device you speak of (with no holes drilled in it . The parts kit that I ordered from SARCO came with one that had holes drilled in it like a muzzle brake . I hope this helps ? Mike