If youโre looking for the best AR-10 Lower Parts Kit, then youโve landed in the right place. One of the things you donโt want to do is choose a lower parts kit that will be low in quality. At the same time, youโll want a kit that will have the parts you need.
With that in mind, weโve taken the liberty of handpicking five of the best AR-10 lower parts kits considered the best on the market. We didnโt rush to choose these kits. We made this decision based on some of the common parts that AR-10 owners might need. We also based it on how affordable they are for those on a budget and lastly, we considered the overall quality.
We guarantee that none of these kits will be flimsy in quality. Before we unveil the list, weโll discuss what is inside these lower kits and help you make the distinction between a great kit versus those that are crappy in quality.
At a Glance: Our Top Picks for AR-10 Lower Parts Kit
Comparison Chart of the Best AR-10 Lower Parts Kit
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Whatโs in a Lower Parts Kit?
One thing that youโll need to know is that not all kits are created equal. There will be some with all the parts you need. And of course, some kits wonโt have those parts included. So itโs important to look through each kit carefully so youโll be able to choose a specific kit for your AR-10. Here are some of the parts that are commonly found in AR-10 lower parts kits:
Trigger Assembly
This will house your trigger and the pins and springs that make it work. Most trigger assemblies vary in pull weight depending on which kit you choose. For example, a mil-spec trigger, on average, will have a pull weight of about four to five pounds. A good trigger is excellent to have as part of your lower assembly so you can fire off initial shots much quicker. On top of that, you will also be able to get follow up shots off much faster.
Pistol Grip and Stock
Some lower parts kits include both a pistol grip and stock. This will allow you to have full control over your rifle. As a result, youโll be able to reduce a good amount of recoil that may cause your rifle to be slightly less accurate. Firm control will always equal better quality shots. Plus, your hit probability will certainly increase.
Magazine Catch Assembly
A lower for an AR-rifle will obviously include something to hold the magazine in place. WIthout a magazine, obviously, you won't be able to fire any additional rounds. A good magazine catch assembly will be able to hold the magazine in place and will allow for reliable cycling and feeding. The better the quality, the less likely you'll run into jamming issues while giving your AR-10 a whirl after everything is newly installed.
What Makes a Great AR-10 Lower Parts Kit?
Of course, youโll need to know the difference between a great lower parts kit from a low-quality, crappy kit. If youโre a first-time buyer, this brief guide should help make your decision process a little easier. Weโve put this list together based on the past purchases from AR-10 rifle owners. Hereโs our list of things to keep in mind when buying one of these products:
Materials
The overall quality should be your top priority when choosing a great kit. As you look closely at each kit, take note of the materials used for the parts which are included. More specifically, anything made from polymer, aluminum, or steel are considered to be of good quality. Thatโs because they have been proven to be the most durable material types, according to numerous gun manufacturers.
Price
While the price is perhaps one of the top factors in a shopperโs final purchasing decision, it should also be taken with a grain of salt. In other words, if the price tag appears to be on the low end, thatโs when you need to look at the overall quality of the product. Yes, there is such thing as finding something affordable in price, but also high in quality. If youโre on a budget, this is what youโll want to aim for.
Installation
There's probably a good chance that you're an AR-10 owner that has no gunsmithing skills. If that's true, we're not judging, because we want these lower parts kits to include parts that are easy to install. The key words to look for are "drop-in". In plain English, this means easy to install.
So you're not going to need to enlist the services of a gunsmith, nor will you need any gunsmithing skills at all to install these. All you need are a few tools and minutes of your time. Once installed, your AR-10 will look like new and be ready for any kind of action.
Review of the Best AR-10 Lower Parts Kits
Below are five of the best AR-10 lower parts kits currently on the market. We encourage you to look through each of these kits carefully so youโll know whatโs inside each of them.
At the same time, youโll easily see which materials the parts are made from to ensure that these are high-quality products. That way, if youโre looking for a kit that will last you a long time, youโll know which one to choose.
Remember, there may be some other parts of the kit you may also need. If itโs included, then definitely consider buying it. If not, move on to the next one. With that said, letโs start with the โbest overallโ AR-10 lower parts kit:
Best Overall:
DPMS - 308 AR Lower Parts Kit W/ Trigger
Pros
Cons
First, weโll be looking at the AR lower parts kit with a trigger from DPMS. Since this has a trigger included, obviously the entire trigger assembly will be included in this kit and pins and springs as well. Also included in the kit is a pistol grip designed to give you better hold on your AR-10 rifle.
So if youโre a shooter that holds accuracy to a high standard, itโs worth it if you get a kit that has a grip and/or a buttstock included. Either way, youโll need both of them to ensure that you can better stabilize your AR-10 rifle.
This kit is something youโll need if youโre either restoring an old AR-10 rifle or if youโre building a new one from the ground up. As it is, youโre getting all kinds of parts ideally found in AR-10 lowers.
Of course, no kit is complete without the pins and springs that are intended to put it all together. Coming back to the grip, itโs made from polymer, which means it's going to be a durable little unit. On top of that, this wonโt be easily damaged due to weather conditions.
On top of that, you wonโt have to worry about damaging this grip while cleaning your gun. No oils or solvents will harm this. If youโre looking for a good AR lower parts kit and you absolutely must have a trigger, then youโll want to choose this kit.
Bottom Line
The kit for is great for .308 caliber AR-10 rifles. So if thatโs what you have, get this kit. This has everything youโll need to put together a complete lower. All the springs, pins, and detents are there.
Plus, the grip is an added convenience if youโre looking for one that will give you the best control possible. Donโt be surprised if you have some recoil reduction once this puppy is installed on your rifle.
Runner-Up:
CMMG - 308 AR Lower Parts Kit
Pros
Cons
For our next lower parts kit, weโll be taking a look at a .308 caliber kit from the CMMG brand. This is the kit youโll want if youโre looking for replacement parts or new parts for your AR-10 building project.
Included is your trigger assembly, designed to give you a crisp clean pull each time you use it. The trigger itself is as close as you can get if you fancy yourself as a fan of mil-spec accessories. The grip is made from high-quality polymer that is durable and will give you the best comfort while you have full control over your AR-10 rifle.
For ease of assembly and to be clear that you know what is what, the parts included come in color-coded bags. This way, you donโt have to mix everything up. This clears up a lot of confusion and headaches.
All you want to do is install each and every part in a matter of minutes. Youโd rather be at the range all day rather than trying to figure out which part is which.
All of the components in this kit are high in quality and designed to last as long as possible. If you take great care of your AR-10 rifle, then you can expect the longevity of these parts to last for years.
Bottom Line
This is a great kit to upgrade your AR-10 rifle. The parts included are all high in quality, especially the grip thatโs included. This will obviously give you a better grip and better control.
If you just want to get maximum accuracy out of your AR-10 rifle, then a kit like this would be a good place to start since it has all the parts youโll need to make the lower end complete.
Best for the Money:
PSA PA10 MOE EPT Lower Build Kit
Pros
Cons
For our next product, we will be looking at a PSA brand kit. This time, weโre looking at this one since we consider this to be the best AR-10 lower parts kit for those on a budget. Even if you donโt have a lot of money to play with, youโre still going to get a decent kit with all kinds of parts that will work best with your AR-10 lower.
Whatโs included? Letโs go down the sample list: first, you have the pistol grip and stock. These are much needed if youโre looking for parts that will allow you complete control over your AR-10 rifle. In other words, youโll be able to resist a lot of recoil. The better you control your rifle, the more accurate your shots will be.
Of course, youโll also have your trigger group included along with your bolt catch assembly, safety selector assembly, and much more. All youโll ever need for your stripped AR-10 lower receiver is all right here at a price that you can afford.
Itโs a whole lot better than having to spend more money on these parts separately. So if youโre looking to save money and just get all the parts in one kit, then this PSA lower build kit might be exactly what you need.
Think about it. You donโt have a lot of money to work with and a kit like this comes along with the opportunity to save you time and money. Why track down the parts you need and spend money on a part that may cost more than this kit itself?
Bottom Line
As expected, this kit has exceeded our expectations. So if youโre looking for a kit thatโs affordable but has all kinds of parts that youโll need for your AR-10, this PSA kit will be worth investing in. For a kit that wonโt break the bank, this has everything that youโll need and then some.
This is the perfect opportunity for budget shoppers to get the parts they need so they can save money and time, rather than waste it all on tracking down each individual part.
4. PSA MOE ACS-L EPT Lower Build Kit
Pros
Cons
Next, weโll be taking a look at the PSA brandโs MOE ACS-L EPT Lower Build Kit. This is one of the best AR-10 lower parts kit on the market. This kit is what we like to call the total package.
If you need a kit to complete the stripped lower half of your AR-10 rifle, then youโre obviously going to want this. Hereโs whatโs included: first, we have a polished trigger that comes complete with the entire assembly itself. It includes everything from the pins to the housing.
The trigger is designed to give you a crisp, clean, mil-spec style pull that will be ideal for firing off quick shots. Of course, no lower build kit is complete without a pistol grip, barrel, and a polymer-made buttstock.
If youโre looking for a kit that has all the fixinโs for your AR-10 rifle, then youโre probably going to want to give this PSA kit a try. Most of the parts are made from high-quality materials that are durable and built to last. Which is always a plus if you hold quality to a high standard.
Bottom Line
This kit is well-deserving of a place on our list. This has pretty much every conceivable part youโll need to build a complete lower receiver. If you have an AR-10 thatโs incomplete and need a lot of parts installed, youโd be insane to pass up on something like this.
It contains so many parts and can be easily installed in a matter of minutes. Add each part where it goes and be ready to go later that same day.
5. PSA PA10 Classic Lower Parts Kit
Pros
Cons
Next, weโll be sticking with the PSA brand. This is the PA10 Classic Lower Parts Kit. This kit includes plenty of parts for assembly. These include the magazine catch assembly, trigger assembly, grip assembly, and more.
You pretty much have groups and assemblies each intended for their own purpose. So you have an assembly for the firing end of your AR-10, a trigger assembly for getting your shots off quickly, and a grip assembly to allow you total control over your rifle.
So you have a standard, classic kit with all youโll need to make sure the entire lower half of the AR-10 rifle is all set and ready for action once everything is installed.
These parts are your standard drop-in parts, which means that they are easy to install in a matter of minutes. So, if youโre looking to install parts on the lower end of your AR-10 so you can give it a go at the range as soon as possible, the PSA Classic Lower Parts Kit might be exactly what youโll need.
Bottom Line
This is your standard lower parts kit (although it doesnโt include some of the extras like the previous PSA kit). The assemblies are all there and so are the springs, pins, and other parts.
If youโre looking for a kit that just has the usual parts that will make an AR-10 lower function properly, then this kit will obviously be the best choice.
Conclusion
Finding the best AR-10 lower parts kit is not that hard. If you know what kind of parts to look for, then the search will be a lot easier. Remember, no lower end of an AR-10 rifle is complete without parts like a trigger assembly, grip, stock, or whatever else.
Of course, be sure that includes all the needed springs, pins, and detents that will hold it all in one place. Find a kit that fits your rifle today and have it ready for action in a matter of minutes.
