The future of the firearm industry is going to be with the firearms that are modular. The Sig P320 and the AR15 Carbine. It’s hard to find a decent gun shop that actually sells a lot of accessories because the truth of the matter is you really need to know the market and what accessories are worth selling. The first thing you need to do, whether you are building an AR15 or you are buying one is if the buffer tube is a Commercial or a Mil-Spec, you can’t guess at this, otherwise, you’ll find out the stock wobbles or that you can’t even get it on. There are ways you can tell just by looking at it vs. having to measure the dimensions of the tube.
Even though there are a lot of changes with handguards and grips, we can clearly see that the Magpul CTR Carbine Stocks are still the #1 rifle stock. It’s just the best price range, you can still add cheek weld or stock extensions on it and you also can adjust the length to something shorter which is especially important if you are wearing AR500 Armor or some time of plate carrier. Making sure you have the right stock length will greatly affect your proficiency. Then from there you can decide on what type of handguard or grip you should choose, it has been confirmed that Magpul has discontinue the Magpul MOE handguard and is now only making the Magpul M-Lok so be aware that those take two different rail sections.