Instruction: Evaluate the relevance of each product title in the input to the given query, and then sort the products in descending order of relevance, placing the most relevant product at the top of the ranked list.

Input:
Query: ar15 parts and accessories
Product list:
A: Spartan Mounts Locking Mount Wall Display - Low Profile Floating Design, Vertical and Horizontal Mounting Solution for Standard .223/5.56 Rifles, Black, 1 Count
B: Taken All Custom Military Army Weapons and Accessories Set Compatible Major Brands ,Accessories - Hats, Weapons, Tools, Modern Assault Pack Military Building Blocks Toy (Original Version)
Answer: A,B