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For those who want to know what power you get from using Abbey Ultra Predator gas (the one that comes in a red can) see the attached pic. I did some testing using 0.3 Geoffs and 0.2 Excels at a temperature of 20c (I do believe). The left side shows a virgin G&P bolt carrier group. On the right is the standard Marui bolt. The max figure for the G&P bolt was 387fps!! With the Marui bolt it was 329fps on 0.2s. Interesting results eh? The mag was filled up each time fresh of course which explains the initial high power.

The buffer tube removal is complete. now it just needs a bit of cleaning up and some paint.

I prefer the original stock. And maybe the scar 20 stock

Good work brother, the pervasive fitting of m4 stocks onto not m4's is a plague that needs stopped at every opportunity.

Stop worrying about things. It’s fine. It’s a GBBR. You are gonna drive yourself crazy over things you don’t need to worry about. Lol. When it breaks then worry. In the meantime just enjoy it. Not that we can play at the moment. Meh! And did you buy it from new? If so nothing to worry about. The MWS is awesome out of the box. Simple.

This video with subtitles ( translated ) give you some ideas of what to expect. G&P does generally quality products for the MWS but I'd still wait another 2-3 months to hear more opinions.

Tm recoil 417. Needs a rewire so I swapped it for a couple of other guns.

Personally I can’t say I have ever used one and all of my guns have seen plenty of red and black gas as well as green. Only upgrade I have made to the BGC is an npas to regulate FPS and I keep a couple of spare Nozzle return springs on hand as they can go (although they can last ages, it’s a bit of a lottery). I’d run it stock for a while and only install the upgrades if the OEM parts break.

Oooooh yeah!! Going to order the fire selector kit next so I can capitalise on the full auto goodness!

I’m using the black MWS one. Most of my gun is stock internally my only internal upgrades are inner barrel, hop rubber, hop hub and npas and that’s it. I have a 450 FPS DMR as one of my MWS’ and in terms of performance the above list (with a long inner barrel) is all it took.

Picked up a king arms sig 556 recently. I love how the real rifle looks. Unfortunately the king arms looked like this So I have been spending my time today, grinding and filing down an ics sig folding stock block and its getting there finally. Already swapped out that massive handguard for a rail system.

Magpul CTR stock mil-spec Magpul MOE-K2+ pistol grip