​Buying A Quality Lower Parts Kit

​Buying A Quality Lower Parts Kit

Published by Black Rifle Depot on May 15th 2019

Buying a Quality Lower Parts Kit

Buying an AR-15 lower parts kit is an intelligent, time saving decision for most builders. The reason why is simple: Having all of the small parts you need compiled for you is just a tremendous help as you build your AR. In case you need convincing or are new to building, we discussed some of the benefits of buying a lower parts kit in a previous blog post that you can find here.

Now let’s say you’ve decided to buy a lower parts kit, but don’t know which one to purchase. It’s normal to want to make sure what you’re buying is good-to-go. When it comes to firearms, quality matters. This goes doubly so for parts that literally hold together the guts of your build. It makes sense to want to buy a quality lower parts kit.

Who to Believe?

So what AR 15 lower parts kit is worth your hard earned money? If you do your own research online, you’ll find a some distinct opinions. Some builders will tell you they’re all the same and just buy the cheapest. While others will share bad experiences they’ve had when they tried to save a few dollars on the cheapest lower parts kit they could find.


So, just who should you believe? Are AR-15 lower parts kits really all the same?

Avoid Unnecessary Frustration

At Black Rifle Depot, we firmly believe the overall quality of lower parts kits is NOT the same across the board. We also believe the phrase “buy once, cry once” has merit when coming to AR 15 Parts.

Building ARs is our passion. We’ve been at this for some time and have experienced first-hand some of the confusion and frustration involved with a build-especially the first one. Black Rifle Depot was created for hobbyist by hobbyist to help mitigate some of that confusion and frustration.

As such, our advice for beginners is to spend a little bit of extra money on the front end. If nothing else, the additional money you spend on a quality lower parts kit helps you avoid the hassle of contacting customer service to rectify an unforeseen issue. Your time is valuable, and no one wants frustration during what should be an enjoyable build process. Why introduce a possibly frustrating wild card into the mix? Why skimp on something that’s so important to you and the overall success of your build?

Thankfully, the AR-15 lower parts kits we sell at Black Rifle Depot are confirmed good-to-go. Buying an affordable, high quality AR-15 lower parts kit from a reputable source like Black Rifle Depot is a great way to save time, money and avoid hair-pulling moments as you work your way towards your completed AR-15 lower receiver.

What is the Difference?

When using lesser lower parts kits, we hear of certain issues arising over and over again. Fit and finish issues being big ones. Excellent fit and finish does matter. Yes, the lower parts kit components “work”, but sometimes not without some finessing. Lesser parts may very well have rough exteriors that need polishing. One very recent example is someone having rough, poorly finished take down pins, meaning their rifle was tremendously difficult to take down.

As we select a quality lower parts kit, we also pay some mind to the materials used to create the components. Whenever possible, we look for detents that won’t corrode. We also look for high-quality springs, good roll pins, and smooth, crisp triggers.

A Good Trigger Matters

Speaking of smooth, crisp triggers - on some lesser, lower quality parts kits, the quality of the trigger pull leaves a lot to be desired. Frankly, it’s one of the most common complaints you’ll hear about a low-quality lower parts kit. Facts are some lower parts kits have better triggers than others. And believe us, you most certainly want one that’s smooth and crisp, not clunky and gritty.

What Lower Parts Kits to Consider

So, you want good parts that provide a good fit, and you want a trigger that isn’t sloppy or gritty? Let’s take a look at just a few of the options available at Black Rifle Depot.

APOC Armory Enhanced Lower Parts Kit

If you’re looking to take a relatively inexpensive lower parts kit with a quality trigger, the APOC Armory Enhanced Lower Parts Kit might be for you. Every component in this AR-15 lower parts kit is American made and backed by a lifetime guarantee. Fit and finish is excellent, with the parts black nitride finished for added corrosion resistance. The trigger is also very nice. You can expect a very smooth trigger pull, with a crisp break right around 6 lbs.

We also sell the APOC Armory Enhanced Lower Parts Kit with a Magpul MOE grip, which is one of the most popular grips on the market today. This grip replaces the mil-spec grip that is normally included in the APOC Armory Enhanced Lower Parts Kit.

AERO Precision AR-15 Lower Parts Kit

Another high-quality AR-15 Lower Parts Kit that deserves mention is the AERO Precision Lower Parts Kit. Basic research shows the AERO Precision AR-15 lower parts kit is widely trusted by builders everywhere. We wholeheartedly agree with that consensus. AERO Precisions’s mil-spec dimensions and coating on components included in the lower parts kit ensure the highest quality and correct component interface.

The first-hand feedback we hear at Black Rifle Depot on the AERO Precision AR-15 lower parts kit has been tremendous, but especially so in regards to its trigger. This is one lower parts kit you should certainly not overlook.

CMMG AR-15 Lower Parts Kit

If you do a bit of reading on what lower parts kits are good-to-go, you are certainly going to see the CMMG AR-15 lower parts kit mentioned, and for good reason. CMMG AR-15 lower parts kits are known throughout the gun industry for exceeding standards for mil-spec lower parts kits. When it comes to build kits with quality springs and detents, like the other kits on this list, the CMMG kit is also an excellent choice. As a helpful bonus, CMMG AR-15 lower parts come in color-coded bags for easy assembly. The trigger on the CMMG is also quite nice. It has a short, crisp pull with no grit.

AR-15 Lower Parts Kit With 3.5 LB Drop-In Trigger

Finally, the AR-15 Lower Parts Kit with 3.5 LB Drop-In Trigger from Black Rifle Depot is certainly one to look at if you’re looking for an affordable, yet super crisp trigger. This lower parts kit includes a 3.5 LB sporting drop in trigger that breaks clean and has none of the mush or grit found in some of the lesser lower parts kits.

Let Black Rifle Depot Help

So, if you’re looking for the highest quality AR-15 lower parts kit for your next build, we have you covered at Black Rifle Depot. No matter which kit you choose, you can be confident that all the parts you need will be there, and that you’ll be choosing a high quality kit that will serve you and your build well. If you have any further questions about what is the best AR-15 lower parts kit for your build, please do not hesitate to call or email. We’d be happy to walk you through the basics and send you well on your way to a complete AR lower receiver.