Mixing and Matching different AR uppers and lowers

The one thing I should have mentioned is that you may also have to match the correct buffer length and weight for the upper.

Always go for company's that have blueprints for mil-spec. I learned that their IA a reason for mis-spec. Awesome content. I'm giving a sub

Ridiculous not to own a 30 cal upper because of that. If you can't be that careful you shouldn't own any firearms.

Je doute que tu puisses chambrer du 300 blackout dans un canon. 5.56 l'ogive ne rentrera pas donc pas de tir possible logiquement

I have a dpms lower with commercial spec buffer tube I don’t know what will fit it

I hate to say it but its not true! I have purchased parts from Aero Precision ,AR-Stoner and many more and not all mil-spec uppers and lowers fit nicely together. Your best bet is to buy the upper/lower and BCG from the same company/brand/manufacturer! That ways it will all run together nicely! Sorry to bust your bubble bro but not all (mil-spec) are the same and your right mil-spec and commercial are different and theres three different types of what everyone is calling an AR10 ! You have to be careful not all AR190 parts work together. My AR10- is really an LR10 and then there is an AR10 and yet a 3rd type of AR10 although an AR10 is one type it is thrown around to covered all AR big bores as AR10s when they are not all machined the same and wont always work right together! AR-Stoner barrels are a decent cheap barrel i own two. They are on the guns i take and get all dirty! LOL I last purchased an AR-Stoner 458Socom barrel and the 1st one came and wasnt properly spaced and the round wouldnt fit into the barrel…..Needless to say i had to return it although i will say their customer service is awesome and ,after getting the return had me out a new barrel in less then one bizz week! Its properly machined this time! LOL Although i didnt have any issues wit hthe 5.56 barrel i got from them and it runs very well! I also purchased a 5.56 barrel from Anderson manufacturing and i swear by their parts and firearms!!! They may be one of the cheaper companies but if you purchase all the main parts from them you can use any BCG in it and barrel. The upper and lowers are so tight and well fit that i have never had any problems running their firearms! three of my collection are all Anderson!!! PSA as well as Springfield and Primary Arms ,Midway USA's AR-Stoner and a few others. One of my favorite ARs is my stag and its one of my work guns in 5.56. I have the three 5.56s and one in each twist rate. Although the stag is button rifled all thee are 1-7,1-8 and 1-9 twists! The rest of my guns are all different calibers. lol i love them all!!! Decent video bro but you gotta be careful to match up manufacturers even if it comes from a company like MidwayUSA or PSA ,some of the companies get them from different Manufacturers and in turn the uppers and lowers dont match up well! Or wont run the BCG properly! Thanks though it was interesting!

Thanks for the informative video. Just the other day I started thinking about getting a 762×39 upper for my stag model 1 considering the price of 556 which isn't coming down. Very timely video I appreciate it all the best.

A .30 cal round can be chambered in a .556 ?

Thank you! Been trying to learn about this all day

I have a question . Will a full length ar15 16in stock buffer work well in a smaller ar platform ? For example a 7.5 upper.. I know theres better aftermarket buffers that you can buy but im just curious if the stock one would work well . Thanks in advance great video !

Channeling Woody
Thanks

Thank you sir

Most do if they are milspec uppers and lowers , just do research it will help you understand the ar15 platform better

Thanks a lot man that really helps!