Polymer80 PF940 Magwells and Backstrap Weight Insert
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There are four different designs for magwells and a backstrap insert to add weight to the pistol frame. The backstrap insert and one of the magwells takes 1/4oz tungsten fishing weights available on Amazon. The backstrap weight insert must be used with one of the magwells as that is what holds it in. Add a thin piece of foam between the top of the magwell mounting block and the bottom of the backstrap insert to prevent rattling. 5mm short heat set insert and m5 hardware are needed. The heat set insert requires a soldering iron with the proper tip. Print with PETG or PLA 100% infill and 0.15mm or smaller layer height. Short 5mm heat set inserts:https://www.amazon.com/gp/product/B09ZNWBBR3/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1m5x0.8x12mm button head screws:https://www.amazon.com/gp/product/B07B2RV4K6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1Soldering Iron:https://www.amazon.com/Weller-SP40NUS-40-Watt-Soldering-Iron/dp/B00B3SG6UQ/ref=sr_1_3?crid=13J5YXJXDF9W&keywords=Weller+SP40NKUS&qid=1689914043&s=industrial&sprefix=weller+sp40nkus%2Cindustrial%2C142&sr=1-3Soldering Iron Tips:https://www.amazon.com/Heat-Set-Installation-Inserts-Applied-Connecting-Accessories/dp/B0BBSH9V8Y/ref=sr_1_4?crid=3IYHCTR8GVQAB&keywords=heat+set+insert+tip&qid=1689914012&s=industrial&sprefix=heat+set+insert+tip%2Cindustrial%2C143&sr=1-4Tungsten weights:https://www.amazon.com/gp/product/B08VRNF2TC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
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