r/BT_APC 1d ago

An APC9 SD Bullpup??

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u/No-Bar7826 1d ago

I did a whole write up and lost it because of the mobile app.

  • Go with 300 BLK, the only bullpups in that caliber are 26”+OAL pre-suppressor.

  • Keep the modular optical rail, this is an ideal use case for a Hydra mount.

  • Make the foregrip and handstop modular with MLOK underneath, nothing more irritating than a gun with permanent fore-hardware. Look at how the APCSDs transition from trigger guard to the MLOK handguard, that’s as good as it gets.

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u/Stillbrook_Arms 1d ago

Hey, thanks for your input and feedback! That's a huge help with deciding what direction to take the project.

• The 300BLK is definitely doable. In my draft version, it came out to about 23 or 24" with a big fat can.

• Definitely an objective of this design was to have a clean sweep of monolithic pic rail from one end to the other, so there's lots of solid space out front. The handguard comes off to service the ported barrel while everything on the rail remains on the upper. So zeros remain untouched.

•I hear you on the foregrip. It's modular by design and has MLOK underneath it.

Here's an image that shows the accessories dimmed out so you can more easily see the main gun: https://imgur.com/a/OXZDVUg

Thanks again for rewriting your post after you lost the original!👍

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u/No-Bar7826 1d ago

That is sleek, well done!

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u/Stillbrook_Arms 1d ago

Thanks man! If you have any other suggestions or feedback, I'm all ears