It depends on what you want to do and how fast you want to change magazines. The kingpin allows for minimal separation (action disassembly) of the upper and. The kingpin allows for minimal separation (action disassembly) of the upper and.
AR Maglock AR15 Gen 4 W/ Kingpin — Tactical Defense Company
This combination gives you the closest experience.
Introduced by ar maglock at 2018 shot show, now available!
The fastest is the gen 2 or gen 4 coupled with the kingpin.
