AT3™ Pro-Builder™ AR-15 Lower Parts Kit - No Grip or Trigger Assembly
UTG Combat D-Grip w/ Ambi Quick Release Deployable Bipod
UTG PRO S1 Mil-Spec Buttstock Kit – All Parts Included – Buffer, Tube, Springs, & More
- Built for Heavy-duty Use with Tightest Tolerance Control
- Providing the Most Secure Fit and Silent Operation
- Stock Molded from Impact Resistant High-strength Polymer
- Mil-spec Diameter Extension Tube Precision Machined from Aircraft Aluminum with Rolled Threads and Hard Coat Anodizing for Best Corrosion and Wear Resistance
- Built-in Rubberized Butt Pad, Chamfered Front and Rear Edges and Slanted Cheek Rest Surface Further Enhance Shooting Stability and Consistent Weapon Control
- Dual Storage Compartment with Removable Waterproof Caps Provides Dry Storage for Batteries (Up to Six CR123) and/or Other Essential Accessories
- Integral Ambidextrous Sling Loop and Reversible QD Sling Swivel Housing for Left or Right Handed Shooters
- Extended 8 Lengths for Increased Length of Pull
- Made in the USA
Included are the following items:
- Polymer Stock Assembly
- Mil Spec 6 Position Extension Tube
- Carbine Buffer
- Buffer Spring
- Tear-drop Ring
- Castle Nut
Products available on this page:
- UTG PRO S1 Mil-Spec AR 15 Buttstock Kit - All Parts Included - Buffer, Tube, Springs, & More - Color: Black | SKU: RBUS1BM
- UTG PRO S1 Mil-Spec AR 15 Buttstock Kit - All Parts Included - Buffer, Tube, Springs, & More - Color: Flat Dark Earth | SKU: RBUS1DM
Have Questions About this Product?
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.
UTG Lifetime Warranty
Leapers, Inc. warrants that all UTG & UTG PRO products conform to published specifications and are free from defects in material and workmanship. We will repair or replace defective products for the duration of the product’s life span. Our dedicated in-house customer service professionals will provide the best-in-class UTG experience.
Please note that this warranty does not extend to products disassembled, damaged from misuse, accidental impact, negligence, natural disasters/accidents, or unauthorized repair or alteration.
Warranty Instructions
- Go to Warranty Request under Customer Service on our website.
- Fill out the necessary contact and product information to the best of your knowledge.
- A purchase receipt is required for all warranty cases and needs to be attached at the end of the form.
- Finalize the case by submitting the information to us.
- You will hear from one of our customer service reps within 24-48 hours and we will provide you with additional information and instructions.
- No return will be accepted without an RA#.
- For any questions regarding the process, please feel free to call at (734)542-1500.