Not something seen on the ODT that I can remember. I have a RIA TM22 semi auto ar style rifle. This is a sweet rifle. No plastic on this rifle except for the extra mags I bought. Has billett aluminum fixed stock that can be changed out to an ar style adjustable stock. Just remove the castle nut and attach an empty buffer tube and you're good to go! Has nice aluminum flip up sights, UTG foregrip, MLok rail with rubber inserts, and treaded barrel! Comes with (5) 10 round mags. Rock Island has 10, 15, and 20 round mags available on their website for a reasonable cost. Great gun at a great price! REDUCED PRICE $300 cash. Pm or text to Steve at 504-470-6936. Thanks ODT