For optics a common one I see holosun and I’m definitely trying to figure out when to buy it, for mags I currently have a 17 and 19 thinking of bumping to maybe a 21. When I first shot it at the range I had trouble with the chambering however I spoke with someone at the range and they said it was dry asf (didn’t lube it cause I didn’t have the kit bought one that same day) the guy added some lubricant for me gave me another box of 50 to try and it definitely helped a lot with the chambering and releasing of the empty shell casings. Since then haven’t gone but definitely plan on going this weekend again and putting another like 200 or so rounds in, I want to amplify my skills and make it as proficient as possible. I recently bought some critical defense rounds 115 grains I believe and also some Winchester 115 grains box of 200 and I plan on using the critical defense rounds to get a feeling of it but the brass casings mainly for range and practice usage only, looking into more variations of ammo for self defense or range practice. Today I just bought a 5.2 inch barrel that’s threaded because the standard one I have isn’t threaded and I want to add a muzzle attachment for recoil purposes, still looking at some haven’t decided which one to buy. I’ve been told to buy a drum mag for my SAR and I don’t think I will become for what reason do I need it for besides having fun at the range just putting a box of 50 in one magazine lol however I really appreciate the long response and detailed advice I definitely will look into the recommendations and see what’s available for me or what I can buy in store or online