AT3™ AR-15 Enhanced Lower Parts Kit with 5lb Single Stage Nickel Teflon Trigger
or 4 interest-free payments of $17.85 with
6 Magazines Per Order: Due to extreme volume, we are limiting sales of magazines to 6 per customer order. This applies to individual and bundled magazines. AT3 reserves the right to cancel any order over the 6 magazine limit.
- Free standard shipping on orders $139+ details
- 90-day no-hassle returns policy
- Backed by the AT3 Lifetime Warranty! what it covers
Frequently bought together
From orders that included this itemProduct description
Tired of swapping out parts? Build the lower you actually want.
This premium lower parts kit features our AT3 Enhanced Nickel Teflon Trigger, giving you the quality trigger your rifle deserves, and the flexibility to tailor your lower to your preference. Now with the option of a classic curved, or modernized flat faced trigger.
This kit is great for any AR builder who wants quality components without breaking the bank, and pairing the pistol grip and trigger guard of your choice with our Nickel Teflon Trigger Assembly. The trigger has a smooth pull and clean break unlike a standard trigger, which can be gritty and detract from accuracy.
American Made Quality
- All parts meet or exceed military specifications (Mil Spec)
- Components are 100% Made in the USA
- Quality packaging keeps components protected and organized
- Backed by the AT3 Lifetime Warranty
This Kit Includes:
- Nickel Teflon Hammer
- Nickel Teflon Trigger
- Enhanced Disconnector
- Hammer Spring
- Trigger Spring
- Hammer Pin
- Trigger Pin
- Disconnector Spring
- Bolt catch
- Bolt catch plunger
- Bolt catch roll pin
- Bolt catch spring
- Buffer retainer
- Buffer retainer spring
- Magazine catch
- Magazine catch button
- Magazine catch spring
- Pivot pin
- Pivot pin detent
- Pivot pin detent spring
- Selector
- Selector detent
- Selector detent spring
- Takedown pin
- Takedown pin detent
- Takedown pin detent spring
- Pistol grip screw and lock washer
- Detailed parts diagram included for quick and easy part identification
All 2 options on this page
Customer reviews 42
Albeit mine did not come with a 5lb single stage trigger, it came with the 6lb single stage. Finish on the hammer face wasn't great, a little choppy to be honest. The nickel teflon coating eliminated the gritty over travel my oem S&W trigger had. Paired with the JP enterprises enhanced spring kit I got the advertised 4 lb pull. Still has a scooch of over travel, but its abrupt and smooth. Saving the rest of my lower parts, never know when you'll need extras.
AT3 Tactical · Thank you for taking the time to leave a review! We're thrilled to hear that you are enjoying our AT3™ AR-15 Enhanced Lower Parts Kit and that it pairs well with your Super Safety. We appreciate your support and hope you continue to have a phenomenal experience with our product. Happy shooting! - The AT3 Team
AT3 Tactical · Thank you for bringing this to our attention. We apologize for any inconvenience you experienced with the disconnector in your lower parts kit. Our team will look into this further and make any necessary improvements to ensure a smoother experience for our customers. We appreciate your feedback and are glad to hear that you were able to find a solution. We hope your range trip goes well this weekend. Happy shooting!
AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.
AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.
AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.
Questions & Answers
No questions yet. Ask about fit, install or compatibility and our team answers within a business day.
Warranty & returns
Backed by the AT3 Lifetime Warranty!

All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.
This includes AT3 Red Dot Sights, Handguards, Iron Sights, and any other product that carries the “AT3 Tactical” or “AT3™” name. For other brands (ex. Magpul or Troy), please refer to the manufacturer’s warranty policy.
In the event that your AT3™ product becomes unusable, we will repair or replace the product at no charge to you.
If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. The warranty is fully transferable, but we may require information about the original purchase to validate the authenticity of the product.
If your product is in need of warranty service, please contact AT3 Tactical to start the process
Our contact info is available here. To expedite processing, please provide your order information and description of the defect.
Please note: The AT3 Lifetime Warranty does not cover loss, theft, intentional damage or cosmetic damage that doesn’t affect the performance of the product.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.


















