Not sure where to put.. What is a "fair" price for Glock 27?

[FearThisInc 35]

Good evening all.. Not sure if this is the appropriate place to put this.. I am contemplating selling my Generation 3 Glock 27 in .40 ..... Purchased the gun brand new, however the shooting style that I find that the glock has does not mesh well with the style I am used to with my duty Sig.  We have a new option to go with that I am more proficient with and looking to sell the Glock to a coworker/friend.  The package that I would be selling is as follows:

 

- Generation 3 Glock 27 (approximately 500 rounds fired) Excellent condition

- 4 magazines with Pierce extension

- night sights

- factory case/paperwork

- Blackhawk Serpa holster

 

 

I am looking to see what a "fair" price would be for this package.  I know brand new he can get the Glock 27 4th Gen for about $450 plus associated fees/tax.  Would appreciate any input..

[High Exposure 5,664]

I picked up a gently used Gen 3 G27 with 5 mags, new night sights, a holster, and all new internals for $325 from a colleague.