Interesting.
As a former owner of a Kel-Tec "Sweet-Sixteen", You have a truly affordable, Made-in-U.S.A. [Cocoa Beach, Florida] designated-Survival Rifle with more AR-compatibilities built into it than an entire page out of Cheaper-Than-Dirt accessories.
Your photo shows the "Charlie/ C-model" which is best for firing-capabilities while under-folded. Just will be harder for magazine-exchanges but You are set if You truly have ownership of this type of rifle now.
Nice! Would love to have one of those, one of the Sub2Ks to match my better half’s Glock as well. Some folks are snobs about them, but I love KT’s innovative designs.
When I bought it, I thought the PLR16 a better choice than the AR buffer pistols, but now that the Sig arm brace is ATF-approved, I’m - well, no telling what kinda damage I’d do if I had disposable income, LOL.