Thingiverse
MakerWorld
MyMiniFactory
Printables
Thangs
Cults
CGTrader
Youmagine
Gambody
Etsy
Tags
1913 3D Printable Models
Rossi Brawler Brace Adapter
Thingiverse
Stevebobiii
Stock 1913 Picatinny Rail Adapter for JMAC Customs/Atlas Customs/5KU/ZION Arms and Similar
Thingiverse
NebulousShade
MCXish folding brace with extra beef
Printables
Ypsilantea