Mossberg MVP Bolt Knob (oversized)

thingiverse

I could not find an oversized bolt handle for my Mossberg MVP. This is modeled after my 556/223 and I’m not sure if it will fit different calibers. It bolts right over the existing handle and needs no modification. I used one M4 x 20mm (it’s a little long, 16mm might be better) button head cap bolt and nut. Then (2) #4-40 x 1/2 inch button head cap bolts and nuts. My apologies for mixing metric and standard sizes. It’s what was on hand at the time. The clamshell bolt knob adds about 16mm in the length over the stock bolt and is approximately 35mm x 25mm at the fat end. I have it sitting under a Primary Arms 1-8 ACSS scope with a throw lever and it runs no problem. It’s very tight to the scope at 1 power but no issue running it at any speed. The extra length makes it much easier to run than the stock bolt.I printed it with ecomax tough PLA 205/58 .12 layer height and 100% infill on an ender 5. It took my printer 5 hrs. Lay the models flat with the interior facing down and enable tree supports. I had zero clean up.