The original intent was to provide an outstanding terminal performance and accuracy while travelling through suppressed with a subsonic or a standard round. Really, it comes down to this: You can shoot .300 Blackout because you have a use for it, or you can shoot .300 Blackout just because you want to. They are flatter shooting and, with less time in flight, less prone to the effects of wind. The split design of having two receivers will allow the upper part to have more customization abilities. At Thunder Tactical, we pride ourselves on product quality, honesty, integrity, and outstanding customer service. Hello there, it’s Michael here. I picked a KISS Tactical lower for one of my 300 BLK's. Just be sure the buffer can take the added recoil from the heavier loads. If you are looking for a lighter trigger, the PSA AR-15 MOE EPT Lower Receiver might not be your best buy. The PSA AR-15 Complete Classic Lower Receiver would fit almost any caliber within the AR category and hence, you won’t have any compatibility issues. Although many shooters would have no problem with the mil-spec trigger on this lower receiver, some weren’t too happy with the aluminium factory trigger that’s included in this lower receiver. Once you have it put together, you’ll be ready for action and so will your .300 Blackout rifle. 300 Blackout Pistol Upper Show sub menu. So it’s important to find a product that will allow you to install it with ease. mounting a scope and etc. In plain English, the trigger assembly and the magazine are the two most important components that are housed in the lower receiver. If you’re looking for the best .300 Blackout lower receiver, you might have a difficult task ahead of you. The rule of thumb is that not all .300 Blackout barrels have the same length, some can go as short as 9 inches, extending to 20 inches, or more. Besides being made from top quality aluminium, the PSA AR-15 Complete Classic Lower Receiver features an M4 stock that’s designed to give you the maximum support by absorbing a great deal of recoil so you can have as much control of your .300 Blackout rifle. Before we unveil our list, we’ll talk about the .300 Blackout and how compatible it is with AR-15s. Unlike some lower receivers, the PSA AR-15 MOE EPT Lower pairs perfectly with most PSA upper receivers. In relation to hit probability, the .300 Blackout has an effective range of 460 meters. If such a stock is what you’d want for your .300 Blackout rifle, you will love this lower receiver. A .300 Blackout receiver is secured to the upper receiver by 2 pins. Hence, it doesn’t matter if it’s a 5.56, .223, or a .300 Blackout, this lower receiver would pretty much fit any rifle among the AR category. And since adding a .300 Blackout upper is much cheaper than buying a whole new rifle and uses the same lower as the standard AR, why not? Barnes 120gr Vor-Tx. Aside from that, this has a safety that will let you know when it's safe and when it's live and ready to fire (hence the name Safe/Fire).Aside from that, this is crafted from high-quality aluminum and is designed to fit a .300 Blackout rifle and even other rifles within the AR category. If you are a shooter that holds accuracy to a really high standard, this buttstock has recoil reduction features by absorbing a significant amount of shock as you shoot. Therefore if you worry about compatibility issues often, you won’t have to if you opt for the PSA AR-15 Complete MOE EPT SBA3 Lower Receiver. Hopefully, you will find something useful over here or just have fun! Some use of tools may be required, but it should be easy enough you don’t have to enlist the services of a professional gunsmith. There won’t be a problem if you use a standard AR-15 lower to build your .300 Blackout rifle. Perhaps one of the most important question to ask yourself is if whether the barrel would fit the lower receiver perfectly. 300 Blackout is optimized for suppressed fire with heavy bullet subsonic loads but can also be used with supersonic ammunition when extra range is needed. You love the classic look of a rifle. A good lower can’t stay in place if you can’t find an upper that is compatible. Either way, you need to find a lower receiver that will accommodate a barrel that is of the specified length. That said, it still carries the same amount of energy at 700 meters that the M855 has at 500 meters. With an adjustable stock, you’ll be able to reach for your .300 Blackout rifle and be dead-on with the right adjustments. The installation process can also be quickly done, so you will most probably be able to give this a whirl on the same day. A .300 Blackout has all the attributes necessary to make it well suited for hunting animals. Its compatibility with most AR-style rifles is pretty amazing. So the versatility and the ability to work with these rifles is quite impressive. As expected, this is more than those usual "you get what you pay for" kind of accessories. Sort By Relevance . Filter by. Material wise, it’s the usual 7075-T6 aluminium from PSA on this list. Everything is assembled and in place, ready to go once it is installed. Other than that, this is one tough customer designed to last you a good deal of time so long as you take great care of it .300 Blackout rifle and clean it as often as every 500 rounds. Compared to the previous lower receiver’s stock, this lower receiver comes with a stock that’s designed to look like a standard rifle’s fixed stock. One great thing about the PSA AR-15 Complete Rifle Lower Receiver A2 is that not only does it fit .300 Blackout rifles, it is also compatible with multiple calibre AR-style rifles. The PSA AR-15 Complete MOE EPT SBA3 Lower is constructed from the same 7075-T6 aluminium like the other PSA lower receivers on this article, so you know this one’s built to last too. If you have a magazine that is built to take on 5.56 NATO rounds, then the answer is yes. Due to the versatility of the PSA AR-15 Complete Rifle Lower Receiver A2, you can do that. The trigger assembly and the magazine are 2 of the most important components that are housed in a .300 Blackout lower receiver. If you have no idea what to look for, here’s a list of recommendations based on what past buyers have said: The important question to ask yourself is: will this fit my barrel perfectly? Remember, not all .300 Blackout barrels are of the same length. That said, not all uppers from the same brand are compatible with their lower receivers, therefore you should always do a little research to find out if your lower and upper receivers match each other. 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