Hello all. I recently purchased a new M4 with collapsible stock and extended mag tube. Primarily will be using this for fun and home defense/SHTF. Thus far, I've added a GG&G Oversized Bolt Release (stock one feels too small!) and an IWC Light Mount for a Surefire M600. My last planned modification is a side saddle and I've narrowed it to two options:
Adding velcro and using shotgun cards (Esstac, SOE, etc.)
Mesa Tactical 8 Round Side Saddle
I was leaning towards the former approach, but wanted to get some additional advice. My main goals are reliability and the ability to reverse any modifications relatively easily. Any feedback is appreciated.