No ratings yet
Be the first to review this product
Aero Precision APAR501103C: The STS (Short Throw Safety) AR15 Stripped Lower Receiver is the perfect lower to start your build. Custom designed markings accept short-throw safety selectors while maintaining mil-spec dimensions and correct component interface. Selector markings will work with 45, 60 or 90 degree safety selectors. STS lowers are marked and milled to accept short-throw safety selectors, but will work with standard selectors as well! Includes: Stripped AR15 Lower Receiver, STS. Not shippable to California, Illinois, Massachusetts, Washington.
Key Specs:
Sponsored
Wheeler Tools
Get your trigger pull exactly right
Wheeler's digital trigger gauge gives you a precise read on pull weight every time.
Shop ToolsHave one to sell?
Current
$74.99
Lowest
$74.99
Highest
$74.99
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertGuide
A comprehensive overview of every major component in an AR-15 build—including what's inside bolt carrier groups and parts kits—organized by assembly for new builders.
12 min read
Guide
A neutral guide to component strategies for left-handed shooters, left-eye dominant right-handed shooters, and those managing eye/hand dominance mismatches. Covers ambi uppers, charging handles, gas system tuning, and real-world tradeoffs.
6 min read