if you plan on using it with a fire control computer/MOSFET, go with the A&K. the PTS version uses a different switch than normal AEGs, and this switch does not keep contact during operation on low voltage trigger wire setups. the switch likes to jump around, so it needs normal switch gap arching to stick and maintain it's connection. i have been working on my team mates PTS ACR for the last few months to try and make it run accurately and dependably on a MOSFET set up. also the internals of the PTS has been some of the worst i have worked with. externally it's a beautiful gun, it's a shame that PTS contracted the internals over to Ares...
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Weapons Technician / Gunsmith
Don't look at me, I don't know, lol ¯\(°_o)/¯.
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