The existence of a "really good complete lower" has sparked some debates among my friends. I like the 1/9 twist because I practice with lightweight bullets and 1/9 rifling can stabilize most projectiles lighter than about 70 grains. My friend told me that he uses 75-grain Hornady TAP T2 (No. 8126N) rounds, a cartridge with absolutely superior performance. This calls for a 1/7 twist. I hadn't thought of the 75-grain TAP bullets, but they are a good reason to have a 1/7 upper handy.
Franklin Armory has a service where the law enforcement officer can have a badge number or even a badge engraved on the receiver. The charge is nominal and I was surprised how quickly this request can be filled. For agencies making a bulk purchase, this could aid in inventory maintenance (and pride of ownership).
The fact that Franklin Armory is a small shop is advantageous to the operator. The stakeholders can personally ensure that everything that leaves the shop meets their expectations.
The HSC-15 uses a MIL-SPEC trigger assembly. When I tried it out I noticed the military feel immediately. The trigger has a noticeable creep, where one can feel the release part of the mechanism engaging the hammer sear.
Target shooters do not like creep, because it can cause a slight movement while squeezing the trigger, which is somewhat imperceptible in a tactical carbine. For the HSC-15, the amount of trigger creep is about right. Moreover, this is in keeping with the design philosophy of making the product reliable first. MIL-SPEC parts are not for ideal conditions, they are for safety and reliability.
I shot a 6.8 Remington upper on the HSC-15 carbine, which Franklin Armory also carries. It was a medium weight barrel and operated smoothly. The HSC-15 comes with a six-position collapsible stock, and I generally prefer a solid stock when shooting this platform and 30-caliber bullets. Although it tossed brass a bit further than I am accustomed, it tossed bullets out the business end rather well. I shot it as quickly as I could cycle it and held the muzzle down comfortably.
The 6.8 Remington has a lot of promise for law enforcement, and it will someday be widely adopted. It runs about 60 to 80 percent of the energy of a .308 and will still operate in a standard AR-15 (HSC-15) receiver. It has excellent performance at moderate distances, and does not significantly impact an agency's logistics.
I could have shot the Franklin Armory 6.8 all day comfortably. All of Franklin's products I've shot were reasonably accurate, and there were no indications that would cause one to question reliability.
Franklin Armory is a relative newcomer in the industry. It makes its products in the United States of entirely U.S. parts. They are law enforcement friendly and cost effective.