I plan on building/buying my first SBR this year. It will be an AR platform in .40S&W and will use Glock mags. The reason I want to got .40 instead of 9mm is because I already reload for it and I have plenty of mags already.
Im looking at PSA's Glock mag lower because the price is pretty good (a lot less than the lonewolf) but they don't have any uppers in .40. Has anyone heard if they're planning to offer them? I sent an email and got a generic response about not knowing inventory changes ahead of time blah, blah blah.
Ive seen a couple other companies that offer .40 uppers that have bolts that work with their Glock mag lowers so I don't see why they wouldn't work with the PSA but I'm not 100% sure. I would like a flat top upper because I plan to put a red dot on it (maybe the new one from vortex).
Im open for other plans also as if like to do this as cheap as possible while maintaining good quality. It would just be a lot easier if PSA made an upper for me as their AR9 uppers are very affordable.
Im looking at PSA's Glock mag lower because the price is pretty good (a lot less than the lonewolf) but they don't have any uppers in .40. Has anyone heard if they're planning to offer them? I sent an email and got a generic response about not knowing inventory changes ahead of time blah, blah blah.
Ive seen a couple other companies that offer .40 uppers that have bolts that work with their Glock mag lowers so I don't see why they wouldn't work with the PSA but I'm not 100% sure. I would like a flat top upper because I plan to put a red dot on it (maybe the new one from vortex).
Im open for other plans also as if like to do this as cheap as possible while maintaining good quality. It would just be a lot easier if PSA made an upper for me as their AR9 uppers are very affordable.
