I don't think 35 is too unreasonable for magazines... I would like to know where you found M&P mags for $21 so I can buy a bunch of them.
Stupid mags for my HK USP 45 are around 65.
Glock 17 G4 FDE | Glock 21 G4 FDE | S&W M&P 22 | S&W M&P 45 | S&W M&P 40 | S&W M&P 9 | Sig P226 MK25 | Sig P229 Extreme | HK P30 | HK45 | HK 45 CT | HK USP 9 | Springfield Armory XDM 9 OD
Daniel Defense DDM4 V4 | Arsenal SGL 21 | ASA SBR | Savage Mark II FV-SR | Mossberg 590A1 20" SP | Mossberg 500 Cruiser
My Instagram (mostly gun pics)