Just installed this on my HK-450GT PRO V2 and it fits perfectly. Dimensions are 51mm x 4mm. Definitely recommend buying from BG because although it's .25 cents more expensive than HK, the shipping alone makes it worlds cheaper.

Just installed this on my HK-450GT PRO V2 and it fits perfectly. Dimensions are 51mm x 4mm. Definitely recommend buying from BG because although it's .25 cents more expensive than HK, the shipping alone makes it worlds cheaper.

Just installed this on my HK-450GT PRO V2 and it fits perfectly. Dimensions are 51mm x 4mm. Definitely recommend buying from BG because although it's .25 cents more expensive than HK, the shipping alone makes it worlds cheaper.

good packinging and good service

good packinging and good service

good packinging and good service