Ruger just announced a new LC Charger chambered in 5.7x28. An LC Carbine was first released in a rifle configuration with a 16.25" barrel and a side-folding and telescoping stock. The LC Charger is a pistol variant of this same gun with a 10.3" barrel. Standard capacity will be 20 rounds and a model with a 10 round magazine will be available for those stuck in one of "Those States."
Due to the new ATF regulations regarding braces this new model will ship without a pistol brace however it does have the stanard picatinny mount. You can run this gun as it is or add a rear sling, but unless the Pistol Brace ruling gets overturned the best option would be to Form 1 the LC Charger and turn it into an SBR with a stock.
The LC Charger's handguard featurs M-LOK rail sections on the sides as well as a handstop which is a nice addition. It also ships without sights while the LC Carbine includes flip-up sights. Interestingly the LC Charger has an MSRP of $999.00 while the LC Carbine has an MSRP of $1009.00. While that's no indication of the actual sales price, it does indicate that the price will likely be similar. The $10 MSRP difference is strange considering the LC Carbine includes a side-folding stock, flip-up-sights, a longer barrel, and a longer handguard. That being the LC Charger MSRP is only $100 more than the Ruger-5.7 and there's no easy way to convert that to an SBR so there's still a lot of value in the LC Charger. Add a stock and a good red dot and this will be a great little package.