[sewktbk]

Alright peeps,

so i've been researching this a bit and can't seem to find a real review on the pros and cons of each system.

What is the exact and main difference between these 2 systems?

What are the up sides of each?

What flaws are each known for?

Which one is to reccomend, and if so under which conditions?

What would be your personnal choice and for what reason?

I ask this because i just put a deposit on a WE PDW this past tuesday, and consequently will soon need to either love it as it is or replace the brass tube with the open bolt. Therefore, im looking for facts on each. Hopefully this helps answer other peoples questions too.

cheers and thanks