Quick view Aero Precision Aero Precision Atlas S-one Handguard, Aero Apra500104a Ar15 Atlas S-one Mlok 12" Blk $194.99 The atlas s-one is designed with size and weight in mind.Aero's proprietary atlas attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability.The aero taper lock attachment... Compare Add to Cart