In light of the Thompson/Center Contender and AR both being able to go from Pistol to Rifle and back, and Ruger's 10/22 rifle and Charger pistol largely being built around the same "core" receiver and parts-kit, Midwest's takedown chassis with AR stock got a harebrained idea percolating in the back of my head...
The basic idea: Exploit MI's folding-stock tube for the Sig MCX and KNS's AR to 1913 buffer-tube adapter for a quick-change backend. Interchangeable SBA3 brace and standard telestock allow "short pistol, "braced pistol" and "rifle configurations with transition between them in seconds. Takedown chassis and interchangeable front-ends similarly allow change between short pistol, long pistol and rifle in seconds.
Complicating factor: I'm left handed, but prefer to work charging handles and "non-firing" controls with my right hand. This saves a little trouble, as almost every lefty CH/oprod assembly I've seen doesn't fit with integral-rail receivers like the one from Brownells. I don't really like the light weight of the Ruger BX-Trigger, but as far as I can see it looks like the "preassembled" with the best chance of fitting the Midwest chassis.
Partslist so far...
Receiver: Brownells BRN22 w/rail
Bolt Ass'y: Ruger B-10C factory (BRN22 doesn't take many aftermarkets)
Bolt Stop Pin: Ruger B-46
Receiver Crosspins: Tandemkross
Triggerguard Ass'y: Ruger BX-Trigger (don't like the light pull but Midwest chassis doesn't fit most aftermarkets)
Charging Handle/Oprod Assy: Undecided... suggestions? As noted above Tandemkross doesn't work with integral-rail receivers
Takedown Chassis: Midwest 1022TDC
Stock adapter: KNS AR-1913 adapter with MI STAP-SF folding AR-style tube
Stock/Brace: SBA3 for pistol, undecided for rifle
Grip: FAB AGF-43S folder
Handguards: Midwest RC4875 for short pistol, 10228H long pistol, 102213H rifle
Barrels: short pistol Ruger factory 22 Charger or similar (~5.5-6" target length), 10-12" long pistol ?, rifle TacSol 1022TDM; Pike Arms takedown hardware kits for barrels as needed
Sights: AR-style BUIS for long pistol and rifle, unsure for short pistol
In a nutshell, if this were offered as a Convertible Contender-style kit when you opened the case you'd see:
- Unmounted rifle stock
- Pistol brace on folding buffer tube
- "Core" assembly (grip, chassis, receiver, FCG)
- Three barrel/forend assemblies - ~6" pistol, ~10" pistol, >16" rifle
- magazine/room for magazines
- space for optics/scopes
Am I all wet either technically or legally, or does this have some grain of potential as a functional Title I concept? If so, what would Stick Nation suggest for fleshing it out and refining it? I already checked out Kidd barrels, and they seemed most emphatic about wanting nothing to do with the Takedown family.
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