Many worship at the altar of Stoner, exalting the AR-15 platform’s ergonomics, versatility, and modularity. But with a receiver extension and buttstock that can’t be folded, since the bolt carrier group reciprocates into it, compactness for transport wasn’t Stoner’s first priority. The aftermarket has come up with solutions for this — but what if you’re looking for an even smaller footprint than a folding stock will provide?
If you don’t mind disassembling your weapon, Stoner’s original design gets you halfway there, as you can easily detach the upper and lower into two pieces. However, it’s fiddly and not the quickest to deploy, and you’re still constrained by the length of the entire upper assembly, essentially the barrel plus the upper receiver — which itself accounts for about 8 inches of length.
Since the barrel is typically the longest component on an AR, several companies have come up with take-down systems to quickly detach and reattach the barrel and handguard assembly from the upper receiver. Combine this with a folding or PDW-style stock or brace, and you’ll have the shortest overall footprint short of sawing your barrel in half (we don’t recommend this unless you’re a hapless virtuesignaling congressional candidate). Something to keep in mind is that systems like this may have some zero shift, though none tested were terribly noteworthy due to the short-range requirements typical of
