Just something people trust more. Maybe a one BCG is better than the one in it. I have no doubt in my AR but if there is something I can do to make it better I won't to hear about it. I am still fairly new to the platform. I know what the b.a.d ifs for. And I thank I'm going to put MOE furniture on it. My current configuration (utg quad rail) seems very heavy for an AR.
I have the magpul moe hand guards with the moe foregrip, so far I really like it. It's comfortable and fairly light. And with its modular design you can still add rails for accessories
Man you've got to do a better job with your grammar and wrong words, it gets old translating you. You want to hear about it or you won't hear about it?
If you're asking if you should buy another BCG, well that's up to you. Some people keep a spare but honestly it tends to morph into another AR. BCM is the best but your S&W BCG should be pretty good. You might look at an H buffer, a cheap and wise upgrade for the M4gery. Maybe even H2 since carbine gas and a 16" barrel slam the action back pretty hard.
The B.A.D. doesn't increase reliability but many people like it. MOE upgrades are cheap and smart.
Yes. I know I have bad grammar lol. It dose not help that I am all ways in a hurry when I'm at work using my phone lol.