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Guntec USA AR-15 Builders Kit w/ Ambidextrous Safety Up to 15% Off w/ Free S&H — 16 models

Guntec USA AR-15 Builders Kit w/ Ambi Safety, Anodized Pink, BUILD-KIT-AMBI-PINK
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Purple, BUILD-KIT-AMBI-PURPLE
Guntec USA AR-15 BUILDERS KIT WITH AMBI SAFETY ANODIZED GREEN, ANODIZED GREEN, BUILD-KIT-AMBI-GREEN
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Bronze, BUILD-KIT-AMBI-BRZ
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Red, BUILD-KIT-AMBI-RED
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Gold, BUILD-KIT-AMBI-GOLD
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Blue, BUILD-KIT-AMBI-BLUE
Guntec USA AR-15 BUILDERS KIT WITH AMBI SAFETY ANODIZED GREY, ANODIZED GREY, BUILD-KIT-AMBI-GREY
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Orange, BUILD-KIT-AMBI-ORANGE
Guntec USA AR-15 BUILDERS KIT WITH AMBI SAFETY ANODIZED CLEAR, ANODIZED CLEAR, BUILD-KIT-AMBI-CLEAR
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Cerakote FDE, BUILD-KIT-AMBI-FDE
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Black Chrome, BUILD-KIT-AMBI-BC
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Matte Rainbow, BUILD-KIT-AMBI-M-RPVD
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Chrome, BUILD-KIT-AMBI-C
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Gloss Rainbow, BUILD-KIT-AMBI-RPVD
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Gold, BUILD-KIT-AMBI-GP
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Matte Rainbow, BUILD-KIT-AMBI-M-RPVD
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Matte Rainbow, BUILD-KIT-AMBI-M-RPVD
Guntec USA AR-15 Builders Kit w/ Ambi Safety, Anodized Pink, BUILD-KIT-AMBI-PINK
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Guntec USA AR-15 Builders Kit w/ Ambi Safety, Anodized Pink, BUILD-KIT-AMBI-PINK
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Purple, BUILD-KIT-AMBI-PURPLE
2 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Purple, BUILD-KIT-AMBI-PURPLE
Guntec USA AR-15 BUILDERS KIT WITH AMBI SAFETY ANODIZED GREEN, ANODIZED GREEN, BUILD-KIT-AMBI-GREEN
3 of 18 images
Guntec USA AR-15 BUILDERS KIT WITH AMBI SAFETY ANODIZED GREEN, ANODIZED GREEN, BUILD-KIT-AMBI-GREEN
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Bronze, BUILD-KIT-AMBI-BRZ
4 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Bronze, BUILD-KIT-AMBI-BRZ
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Red, BUILD-KIT-AMBI-RED
5 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Red, BUILD-KIT-AMBI-RED
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Gold, BUILD-KIT-AMBI-GOLD
6 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Gold, BUILD-KIT-AMBI-GOLD
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Blue, BUILD-KIT-AMBI-BLUE
7 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Blue, BUILD-KIT-AMBI-BLUE
Guntec USA AR-15 BUILDERS KIT WITH AMBI SAFETY ANODIZED GREY, ANODIZED GREY, BUILD-KIT-AMBI-GREY
8 of 18 images
Guntec USA AR-15 BUILDERS KIT WITH AMBI SAFETY ANODIZED GREY, ANODIZED GREY, BUILD-KIT-AMBI-GREY
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Orange, BUILD-KIT-AMBI-ORANGE
9 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Orange, BUILD-KIT-AMBI-ORANGE
Guntec USA AR-15 BUILDERS KIT WITH AMBI SAFETY ANODIZED CLEAR, ANODIZED CLEAR, BUILD-KIT-AMBI-CLEAR
10 of 18 images
Guntec USA AR-15 BUILDERS KIT WITH AMBI SAFETY ANODIZED CLEAR, ANODIZED CLEAR, BUILD-KIT-AMBI-CLEAR
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Cerakote FDE, BUILD-KIT-AMBI-FDE
11 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Cerakote FDE, BUILD-KIT-AMBI-FDE
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Black Chrome, BUILD-KIT-AMBI-BC
12 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Black Chrome, BUILD-KIT-AMBI-BC
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Matte Rainbow, BUILD-KIT-AMBI-M-RPVD
13 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Matte Rainbow, BUILD-KIT-AMBI-M-RPVD
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Chrome, BUILD-KIT-AMBI-C
14 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Chrome, BUILD-KIT-AMBI-C
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Gloss Rainbow, BUILD-KIT-AMBI-RPVD
15 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Gloss Rainbow, BUILD-KIT-AMBI-RPVD
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Gold, BUILD-KIT-AMBI-GP
16 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Gold, BUILD-KIT-AMBI-GP
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Matte Rainbow, BUILD-KIT-AMBI-M-RPVD
17 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Matte Rainbow, BUILD-KIT-AMBI-M-RPVD
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Matte Rainbow, BUILD-KIT-AMBI-M-RPVD
18 of 18 images
Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Matte Rainbow, BUILD-KIT-AMBI-M-RPVD

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Questions & Answers
Customer Reviews
Helpful Positive Review
looks great by Dozar, Verified Owner, April 26, 2023
i was worried it wouldn't match the rest of the reds i put on my gun but i was supper surprised it all matches 3 sets from 2 different companies and it all matched the only issue was that the mag release button was threaded wrong but a quick call to ...
Read More...
2/2 found this helpful
Helpful Negative Review
BAD QUALITY by Junior, Verified Owner, March 29, 2024
The quality of the detent pins are very bad. The pins were flat and couldn’t move the safety selector or pull the takedown pins. Save your money and the frustration. Not worth it.
4/4 found this helpful
Most Recent Reviews
Purchased the Orange and Blue kits by Todd, Verified Owner, July 28, 2026
No issues with this kit, comes with all of the springs and detents, which is always nice. The finish seems durable enough, the blue is bright and solid. Only complaint might be that the bolt catch is just standard black, it would have been nice if ...
Read More...
Most Recent Reviews
Fits well and complete by Todd, Verified Owner, July 28, 2026
No issues with this kit, comes with all of the springs and detents, which is always nice. The finish seems durable enough, the orange is bright and solid. Only complaint might be that the bolt catch is just standard black, it would have been nice i...
Read More...
Most Recent Reviews
Poor quality control by Chuck, Verified Owner, July 24, 2026
The take down detent pins and springs were two different sizes. Bolt catch pin was obviously too big. I tried to use them on a spikes milspec lower and had to modify parts like shorten springs or swap parts with a different lower kit. I tried reachi...
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Most Recent Reviews
Great Accent to any AR by AggOwl, Verified Owner, June 18, 2026
One of the few off the shelf options for small parts accent colors. Also like the larger pin heads. Have MANY of these.
Read All 18 Reviews
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16 Models Available
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  • Guntec USA AR-15 Upper Completion Kit w/ Gen 3 Dust Cover, Anodized Blue, 223UPPER-CKIT-G3-BLUE
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Product Info for Guntec USA AR-15 Builders Kit w/ Ambidextrous Safety

Guntec USA AR-15 Builders Kit w/Ambidextrous Safety contains most of the parts you need to build your AR-15. This Guntec USA Parts Kit features a multi-position short throw ambidextrous safety. Complete AR-15 Builders Kits come in a black color and include a Mil-Spec buffer tube, bolt catch, magazine catch, pivot pin, takedown pin, magazine release button, bolt catch spring, magazine catch spring, receiver pivot detent, receiver take down detent, bolt catch plunger, bolt catch pin, selector detent spring, receiver pivot pin, take down pin, magazine release button, bolt catch plunger pin, selector detent spring, 1 bolt catch pin, 1 bolt catch plunger pin, selector detent spring, receiver pivot detent spring, one take down detent spring, 1 multi position short throw ambi safety. Whether you are building your first AR-15 rifle or looking to modify an existing rifle, this complete AR-15 Builders Kit has everything you need. Use the AR-15 Parts Kit for Builders to create a reliable and versatile AR platform.image

Specifications for Guntec USA AR-15 Builders Kit w/ Ambidextrous Safety:

Manufacturer: Guntec USA
Caliber: .223 Remington
Gun Make: AR Platform
Gun Model: AR-15
Condition: New

Package Contents:

  • Guntec USA AR-15 Builders Kit w/ Ambidextrous Safety
  • 1 Anodized Mag Catch Lever
  • 1 Bolt Catch
  • 1 Anodized Takedown Pin Set
  • 1 Magazine Catch Spring
  • 2 Trigger Pins
  • 1 Buffer Retainer
  • 1 Anodized Magazine Release Button
  • 1 Bolt Catch Spring
  • 1 Buffer Retainer Spring
  • 1 Selector Detent
  • 2 Take Down/Pivot Detents
  • 1 Bolt Catch Plunger
  • 1 Bolt Catch Pin
  • 1 Selector Detent Spring
  • 1 Receiver Pivot Detent Spring
  • 1 Take Down Detent Spring
  • 1 Anodized Multi Position Short Throw Ambi Safety

Guntec USA AR-15 Builders Kit w/ Ambidextrous Safety Orderable Models

List of Orderable Models

  • Guntec USA AR-15 Builders Kit w/ Ambi Safety, Anodized Pink, BUILD-KIT-AMBI-PINK , MPN: BUILD-KIT-AMBI-PINK , UPC: 752574665399 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-PINK
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Purple, BUILD-KIT-AMBI-PURPLE , MPN: BUILD-KIT-AMBI-PURPLE , UPC: 709016737817 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-PURPLE
  • Guntec Usa Ar-15 Builders Kit With Ambi Safety, Anodized Green, Build-Kit-Ambi-Green , MPN: BUILD-KIT-AMBI-GREEN , UPC: 709016738258 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-GREEN
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Bronze, BUILD-KIT-AMBI-BRZ , MPN: BUILD-KIT-AMBI-BRZ , UPC: 709016738340 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-BRZ
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Red, BUILD-KIT-AMBI-RED , MPN: BUILD-KIT-AMBI-RED , UPC: 709016737800 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-RED
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Gold, BUILD-KIT-AMBI-GOLD , MPN: BUILD-KIT-AMBI-GOLD , UPC: 709016737824 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-GOLD
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Anodized Blue, BUILD-KIT-AMBI-BLUE , MPN: BUILD-KIT-AMBI-BLUE , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-BLUE
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Black Chrome, BUILD-KIT-AMBI-BC , MPN: BUILD-KIT-AMBI-BC , UPC: 752574660844 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-BC
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Matte Rainbow, BUILD-KIT-AMBI-M-RPVD , MPN: BUILD-KIT-AMBI-M-RPVD , UPC: 752574660875 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-M-RPVD
  • Guntec Usa Ar-15 Builders Kit With Ambi Safety, Anodized Grey, Build-Kit-Ambi-Grey , MPN: BUILD-KIT-AMBI-GREY , UPC: 709016738241 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-GREY
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Gold, BUILD-KIT-AMBI-GP , MPN: BUILD-KIT-AMBI-GP , UPC: 752574660837 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-GP
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Orange, BUILD-KIT-AMBI-ORANGE , MPN: BUILD-KIT-AMBI-ORANGE , UPC: 752574659688 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-ORANGE
  • Guntec Usa Ar-15 Builders Kit With Ambi Safety, Anodized Clear, Build-Kit-Ambi-Clear , MPN: BUILD-KIT-AMBI-CLEAR , UPC: 709016738234 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-CLEAR
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Cerakote FDE, BUILD-KIT-AMBI-FDE , MPN: BUILD-KIT-AMBI-FDE , UPC: 752574660509 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-FDE
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Chrome, BUILD-KIT-AMBI-C , MPN: BUILD-KIT-AMBI-C , UPC: 752574660851 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-C
  • Guntec USA AR-15 Builders Kit w/Ambidextrous Safety, Gloss Rainbow, BUILD-KIT-AMBI-RPVD , MPN: BUILD-KIT-AMBI-RPVD , UPC: 752574660868 , Code: 2AH-LPK-A15BKAS-BUILD-KIT-AMBI-RPVD
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Last updated 2026-08-13 UTC.