Hey Pure, just buy one. I've been looking at that for a while but just like you, couldn't justify the cost. And yeah it'd be expensive to just buy one for each AR. Also I seen that there are fitment issues with some receivers.
I actually prefer the Troy Bad lever to the magpul. The controls are just a tad bigger and easier to access.
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul