Originally Posted by Towe1ey
That's something that I'm unsure of. Have you tried searching on Google as to a similar situation with the same gun? I would try that first.
I couldn't find anything on Google in regards to the PDI W-Hold bucking in a Classic Army M15-type AEG specifically, but it seems to get good reviews in other guns. One person somewhere mentioned while his semi-auto accuracy increased, his full-auto accuracy decreased; this isn't a big deal to me as I only fire my airsoft gun in semi-auto.