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Mac 11 Short Stroke Buffer Pack release image
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Mac 11 Short Stroke Buffer Pack

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Credit goes to the original maker, no idea who modeled this. Ripped from the UMP11/9 files, and sized differently.

Multiple different length TPU buffers for the Mac11/Mac11 Bolt. Use any tpu you'd like, experiment with what makes it softer or harder. Density of the material as well as the size of the buffer also changes the cyclic rate of the bolt. The 15mm buffer, printed in 95a tpu @ 30% gyroid infill / 3 walls has lasted me over 500 rounds.

The cyclic rate will change drastically as well, if you plan on running an FRT, just make sure that you are careful, as it may increase the chance of OOB detonations. Please print responsibly and DO NOT try and print these in anything other than TPU.

Most tested is the 20mm variant, as thats what comes in the UMP11/9 build. However the smaller ones work well too. Cuts felt recoil down as well.

LBRY Tags: 3d2a; mac11; 9mm

9x19mm
Cobray
M-11/9
Accessory
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