Picking The Right AR15 Lower Parts Kit


#1

Selecting an AR-15 Lower Parts Kit from Black Rifle Depot

Selecting an AR-15 Lower Parts Kit? For what seems a somewhat inconsequential grouping of small parts, we get a lot of questions on what AR-15 Lower Parts Kit to select. While there are some differences, rest assured all of the AR-15 Lower Parts Kits we sell at Black Rifle Depot are confirmed good-to-go.

However, if pressed on which we would select for our own builds, there are a few differences which we can go over here. That said, if you still have questions, please do not hesitate to contact us.

Why Buy a Lower Parts Kit?

The most common question we hear from new builders at Black Rifle Depot is “why do I need a lower parts kit?” Well, are you building up a stripped lower? Are you replacing old parts on your existing AR lower receiver? If you’re in either situation, you probably need a lower parts kit. From experience, I can say that trying to chase down all of the small parts, springs, and detents can be a time-consuming pain. Doubly so if you are new to building. Having all of the small parts you need compiled for you is just a tremendous help.

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 and money as you work your way towards a complete or updated AR-15 lower receiver.

APOC Armory AR-15 Lower Parts Kit

This standard lower parts kit from APOC Armory is a staple for all of my recent builds. It comes with everything you need to get a gun up and running reliably and affordably. For the low cost and for what you get, I feel this is the best AR-15 Lower Parts Kit for most, and I would recommend over all of the other ones we carry. When you buy this kit, you can be confident that the parts it contains are all in-spec and are covered by a lifetime warranty.

Parts that are included in this kit:

  • Bolt Catch

  • Bolt Catch Plunger

  • Bolt Catch Roll Pin

  • Bolt Catch Spring

  • Buffer Retainer

  • Buffer Retainer Spring

  • Disconnect

  • Disconnect Spring

  • Hammer (Black Oxidize)

  • Hammer Pin

  • Hammer Spring

  • Magazine Catch

  • Magazine Catch Button

  • Magazine Catch Spring

  • A2 Pistol Grip

  • Pistol Grip Lock Washer

  • Pistol Grip Screw

  • Pivot Pin

  • Pivot Pin Detent

  • Pivot Pin Detent Spring

  • Selector

  • Trigger Guard

  • Selector Detent

  • Selector Detent Spring

  • Takedown Pin (Front & Rear)

  • Takedown Pin Detents (2)

  • Detent Springs (2)

  • Trigger (Black Oxide)

  • Trigger Guard

  • Trigger Guard Roll Pin

  • Trigger Pin

  • Trigger Spring

APOC Armory Enhanced Lower Parts Kit

If you’re looking to take a relatively inexpensive step-up, the APOC Armory Enhanced Lower Parts Kits are for builders who appreciate and demand top quality parts down to the smallest components on their rifles. Every component in this AR-15 lower parts kit is American made and backed by a lifetime guarantee. As for what is enhanced, the parts in this AR-15 lower parts kit are black nitride finished for added corrosion resistance. The trigger is also very nice…as is the enhanced polymer trigger guard. The trigger itself that comes with the APOC Armory Enhanced Lower Parts Kit…in my experience, you can expect a very smooth trigger pull, with a crisp break right around 6lbs.

What’s included in the APOC Armory Enhanced Lower Parts Kit:

  • Mil-Spec Tactical Grip

  • Enhanced Polymer Trigger Guard

  • Semi Trigger

  • Semi Hammer

  • Semi Disconnector

  • Semi Selector

  • Bolt Catch Spring

  • Detent Spring

  • Bolt Catch Buffer

  • Take Down Detent

  • Bolt Catch

  • Magazine Catch Spring

  • Bolt Catch Roll Pin

  • Magazine Catch Button

  • Magazine Catch

  • Front Pivot Pin

  • Hammer Spring

  • Trigger Spring

  • Pistol Grip Screw

  • Pistol Grip Lock Washer

  • Selector Spring

  • Detent Selector

  • Hammer Pin

  • Trigger Pin

  • Take Down Pin

  • Buffer Retainer Pin

  • Buffer Retainer Spring

  • Disconnector Spring

It’s worth noting 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 Tactical Grip that is normally included in the APOC Armory Enhanced Lower Parts Kit.

Via Magpul:

The MOE Grip (Magpul Original Equipment) is a drop-in upgrade for the standard AR15/M4 pistol grip. The ergonomic, hand filling design combines anti-slip texturing with storage core capability. With a similar shape to a ‘medium’ sized MIAD, the one-piece reinforced polymer construction provides simplicity and a reduced cost while still maintaining the durability needed to withstand operational environments. The MOE Grip accepts optional Storage Cores for gear stowage and includes a basic grip cap.

Aero Precision AR-15 Lower Parts Kit

One other high-quality AR-15 Lower Parts Kit that deserves mention is the AERO Precision Lower Parts Kit. I’ve used these kits without a single hiccup over the course of many builds. If

you’re building an AR using one of the AR Builder’s Kits from AERO Precision, this kit is certainly something to consider…not that one of the kits from APOC Armory won’t work for you.

The Lower Parts Kit includes the following:

  • Bolt Catch

  • Bolt Catch Plunger

  • Bolt Catch Roll Pin

  • Bolt Catch Spring,

  • Buffer Retainer

  • Buffer Retainer Spring

  • Disconnect

  • Disconnect Spring

  • Traditional Hammer (Black in Color)

  • Hammer Pin

  • Hammer Spring

  • Magazine Catch

  • Magazine Catch Button

  • Magazine Catch Spring

  • Pistol Grip (A2 style)

  • Pistol Grip Lock Washer

  • Pistol Grip Screw

  • Pivot Pin

  • Pivot Pin Detent

  • Pivot Pin Detent Spring

  • Selector, Selector Detent

  • Selector Detent Spring

  • Takedown Pin

  • Takedown Pin Detent

  • Takedown Pin Detent Spring

  • Traditional Trigger (Black in Color)

  • Trigger Guard

  • Trigger Guard Roll Pin

  • Trigger Pin

  • Trigger Spring

What are “Oops Kits”?

As you browse through our different AR-15 Lower Parts Kits at Black Rifle Depot, you may notice something called an “Oops Kit”. Long story short, if you build enough ARs, at some point you’ll be able to relate to having a missing buffer detent, or having a spring go flying, never to be seen again. An “Oops Kit” helps prevent a ton of frustration by giving you spares of some of

the most commonly misplaced parts. For the low cost of the kit, it’s really a no-brainer as far as a quick and easy insurance policy.

For me, putting together a lower receiver is something that is therapeutic and calming…but that all goes out the window when I’m crawling around on all fours with a flashlight looking for a tiny spring that has rolled itself who-knows-where.

What’s included in an Oops Kit?

  • Bolt Catch Detent

  • Bolt Catch Pin 3/32″ x 1/2″ coiled pin

  • Bolt Catch Spring

  • Buffer Detent

  • Buffer Detent Spring

  • Disconnect Spring

  • Magazine Catch Spring

  • Safety Selector Detent

  • Safety Selector Spring

  • Take Down, Pivot Pin Detent (2)

  • Detent Take Down Spring (2)

  • Hammer spring

  • 1/8 x 5/8 Coiled Roll Pin For Trigger Guard

  • Trigger and Hammer Pins

  • Trigger Spring

So, if you’re looking for the best 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, they’ll fit as they should, and that they’re premium parts backed by a lifetime warranty. If you have any further questions about what is the best AR-15 lower parts kit for you, 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.


#2

Thanks for the post, was a good read.


#3

Great read!
:point_down::+1::+1::+1::+1::+1::+1::+1::+1::+1::+1::+1::+1::+1::+1::+1::+1::+1::wave::wave::wave::wave::wave::wave: