I'm looking to refurbish eight 20 round USGI mags, but only found one source for 20 round mag springs: Magblocks replacement springs
Do you guys have any info? I'm just looking for standard mil-spec springs, nothing fancy.
ETA: I saw a thread in this forum talking about the johnmasen springs, but doing some research on those produced an older AR15.com thread that questioned the quality of the springs.