Airsoft DBoys Large Premium AN PEQ-2 Battery Box Case RIS Mount - Airsoft DBoys Large Premium AN PEQ-2 Battery Box Case RIS Mount UNIVERSAL FIT ON STANDARD 20mm WEAVER/RIS SYSTEMS RECOMMENDED FOR 8.4V BATTERIES (1500-1800MAH) INTERNAL DIMENSIONS: APPROX. 5IN LENGTH & 2.5IN WIDTH 1:1 REPLICA