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  2. AR15 Lower

AR15 Lower


AR15 Lower subcategories
  • GM AR-15 LOWER PARTS KIT | DROP IN TRIGGER GM AR-15 LOWER PARTS KIT | DROP IN TRIGGER
  • GM AR-15 LOWER SMALL PARTS GM AR-15 LOWER SMALL PARTS
  • GM AR-15 BUTTSTOCK , BRACES & KITS GM AR-15 BUTTSTOCK , BRACES & KITS
  • GM AR-15 PISTOL GRIPS,BUFFER , BUFFER TUBE AND PARTS GM AR-15 PISTOL GRIPS,BUFFER , BUFFER TUBE AND PARTS
  • GM AR-15 MAGAZINES GM AR-15 MAGAZINES
  • GM AR-15/ AR-9 80% LOWER RECEIVER FRAME GM AR-15/ AR-9 80% LOWER RECEIVER FRAME
  • GM AR-15 COMBO SETS GM AR-15 COMBO SETS
  • AR-15 FFL LOWER RECEIVERS AR-15 FFL LOWER RECEIVERS

AR15 Lower Parts & Accessories 

"Gorilla Machining has the best source for AR-15 Lower Receiver Assembly Parts. If you are building a stripped lower receiver into a complete rifle or just replacing some old parts, we have everything you need. We have you covered from triggers, disconnector springs, trigger guards, hammer springs, trigger springs, safety selectors, detents, bolt catches, roll pins, build kits, part kits, magazines, stocks, grips, and still so much more. A high-quality lower parts kit is needed to assemble your lower so ensure you have one accessible to take advantage of our lower receiver parts.


Take your time browsing through our varied catalog which is brimming with top-performing components and accessories for your rifles. With years of manufacturing experience under our belts, we are excited to provide a specialized selection of barrels and receivers made directly in the United States. See the quality for yourself and shop American-tough products from Gorilla Machining today. You will be glad you did!


If you have any questions, we are here to be of service. Contact us with your inquiry by phone or email, and we will get back to you with customer service you can count on. Our representatives are professional and friendly, and we will be happy to help you.


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AR-15 Lower Receiver Assembly

TFor those who enjoy working with guns, assembling an AR-15 rifle may be a fulfilling activity that provides a hands-on method of personalizing and learning about your weapon. Selecting the appropriate components kit is crucial for guaranteeing dependability and efficiency of the lower receiver assembly, which is a crucial part of your AR-15 construction. 
 
All the minor bits and components required to build the lower receiver of an AR-15 rifle are included in an assembly parts kit. Anyone assembling an AR-15 from the ground up or replacing old parts needs this kit. With vital components like the magazine catch, bolt catch, and fire control group housed inside, the lower receiver serves as the gun's structural core. 
 
When pushed, the trigger is the part that starts the firing process. Shooting performance of the rifle, particularly accuracy and fire rate, is greatly influenced by the quality of the trigger. The cartridge's primer ignites when the hammer strikes the firing pin. To endure frequent use, it is often made of sturdy materials. 
 
The disconnector keeps the rifle in semi-automatic mode by resetting the trigger after every shot, allowing it to only fire again when the trigger is pressed and released. The bolt catch keeps the bolt open and enables faster reloading by securing the bolt carrier group after the final bullet is discharged. This part is essential to keeping the weapon operational and ready to fire. 
 
The magazine is held firmly in place within the lower receiver by the magazine catch. Smooth magazine changes and consistent ammo feeding are guaranteed by a functional magazine catch. The magazine can be taken out of the rifle by pressing the magazine release button, which also disengages the magazine catch. This part needs to be responsive and easily available in order to function well. 
 
The upper and lower receivers can pivot open for upkeep and cleaning thanks to the pins connecting them. A tight fit and seamless operation are guaranteed by premium takedown and pivot pins. The bolt carrier group cycles consistently thanks to the buffer retainer and spring, which hold the buffer and buffer spring within the buffer tube. Reliable operation depends on these parts being retained properly. 
 
The shooter can alternate between safe and fire modes with the help of the safety selector. A trustworthy safety selector is an essential part of the rifle since it improves both user control and safety.The pistol grip and all related parts are included in the grip assembly. A shooter can handle and control the weapon more effectively if they have a comfortable, ergonomic grip. The trigger guard shields the trigger from unintentional pulls and gives the shooter's finger a secure surface to land on. For use in tactical situations or while wearing gloves, several kits come with expanded or improved trigger guards. 
 
There is a great deal of customization available when building your own lower receiver. A rifle that is customized to your requirements can be made by selecting particular parts, such as ergonomic grips or particular trigger types. You may save money by assembling your own AR-15 lower receiver rather than buying one that is already put together. You can invest in higher-quality parts where it matters most and better manage your budget by choosing specific components. 
 
Assembling your lower receiver offers important information about how your AR-15 operates internally. You become a more competent and knowledgeable gun owner as a result of this practical experience, which improves your comprehension of the rifle's upkeep and operation. Your rifle's dependability and performance can be increased by using high-quality parts. Tailoring your lower receiver increases the overall functioning of your gun and guarantees that every component satisfies your criteria.
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