A production folding stock for MasterPiece Arms 9mm pistols. Designed, prototyped, and tested in the open — now open for pre-order.
Expected to ship [SHIP WINDOW]. Balance invoiced before your unit ships — no surprises.
First runs are limited. A down payment holds your unit in line — here's exactly how it plays out.
Pay the down payment to lock in your unit from the first production run. Your spot is held in the order payments come in.
We make the run. You'll hear from us when your stock is ready to ship.
When your unit is ready, the balance is invoiced. Pay it and your part ships — tracking emailed as soon as it leaves.
| Manufacturing | Production parts |
|---|---|
| Material | [MATERIAL — e.g. 6061-T6 aluminum / 4140 steel] |
| Weight | [WEIGHT — e.g. 4.2 oz] |
| Finish | [FINISH — e.g. Type III hardcoat anodize, black] |
| Compatibility / Fitment | MasterPiece Arms (MPA) 9mm pistols — [EXACT MODELS TO CONFIRM] |
| In the Box | [WHAT'S INCLUDED — part, hardware, instructions] |
Built for the platforms below. If yours isn't listed, ask before you order — we'd rather tell you no than sell you a part that doesn't fit.
Questions on fitment? Email [CONTACT EMAIL] before reserving.
[REFUND POLICY — plain-language terms go here: e.g. fully refundable until production begins on your unit; after that, refundable minus (restocking / machining) costs. Final wording to be set before launch.]
Units from the first run are expected to ship [SHIP WINDOW], in the order reservations were placed. Pre-order timelines are estimates — machining and finishing can shift dates, and we'll email you if the window moves.
When your unit is ready to ship, we'll email you an invoice for the remaining balance. Your part ships once the balance is paid. If we don't hear back within [— days], the reservation may be released to the next person in line — see the refund policy above.
No. The Overfolder is a component part — an accessory stock. It is not a firearm and not a receiver, and no FFL is required to purchase it; it ships directly to you. Buyers are responsible for knowing and following all federal, state, and local laws that apply to their build.
Designed in the open. The Overfolder started with early versions Brrrt Simpson made himself by hand, then evolved into 3D-printed prototypes tested on camera for his followers and refined across a year of Reels — and graduated to the production run this page reserves.
The Overfolder is by Brrrt Simpson — designed, prototyped, and tested by the maker.
Follow the build: @brrrtsimpsonGet production updates, restock notices, and first word on the next run. No spam — just the part, when there's news about the part.
Signups open your email app to reach us — list provider hookup comes at launch.
