V3RTIGO

you dont lose the qd barrel option. you just glue the nub in place.

I'm sorry to tell you, but you have screwed your hop up. As with any barrel removal, you ALWAYS have to adjust the hop to zero. that way, the will be very very minimal contact between the nub and the bucking. I recommend this: http://www.wiitech.com.hk/eshop/product_info.php?cPath=68&products_id=430 or you can order a new nub from magpul or firesupport.co.uk or do that wierd toothpick mod. next time you remove the barrel, make sure that you zero the hop (just turn the hop up wheel clockwise).

What about this: http://extreme-fire.com/2011-SW-AB-LONG.html I need a basic yet reliable AB MOSFET.

Glad to hear it, thanks! never found a person who installed it in a Masada and posted it. I want to buy the SW-UCM too with AB MOSFET. What do you people say about the AVOCADO active breaking MOSFET? Link: http://shop.ehobbyasia.com/avocado-burst-avocado-programmable-mosfet-device-for-aeg-1-12-30-rounds.html

Why does it give inconsistent hop?

You can use a regular nub with the masada with this kit. in the stock hup-up arm the only nub that could fit there without modification is the stock nub, which is terrible.

Check this out:http://www.wiitech.com.hk/eshop/product_info.php?cPath=58&products_id=430 Purchased it yesterday