Awhile back i got the True Snipers supplement for DH and found it much to my liking. ( as well as my players ) I took some time and did some design work and created a fair number of the weapons outlined in that supplement and have linked them here for you to see.

http://www.deviantart.com/?qh=&section=&global=1&q=cobramax76#/art/Elysian-Night-Raptor-284085540?_sid=3ba4cd3c the Elysian Night Raptor

http://cobramax76.deviantart.com/gallery/#/art/Catachan-Ferryman-Long-Las-284086381?_sid=251e6924 Catachan Ferryman Long Las

http://cobramax76.deviantart.com/gallery/#/art/Elysian-Angel-20-Designated-sniper-rifle-284086177?_sid=4c22c386 Elysian Angel 20 Designated Sniper Rifle

http://cobramax76.deviantart.com/gallery/#/art/Lathe-Annihilatrix-field-gun-284086287?_sid=40851679 Lathe Annihilatrix Field Gun

http://cobramax76.deviantart.com/gallery/#/art/Armageddon-Pattern-Autogun-and-Yarrrick-pattern-284085630?_sid=4d3c7740 Armageddon pattern Autogun & Yarrick pattern sniper variant

http://cobramax76.deviantart.com/gallery/#/art/Absolution-Sniper-rifle-284085331?_sid=418aa318 Absolution sniper rifle

Hope you like.

Those look sweeeeet! Thanks for sharing!

Very nice. Thanks for sharing.

Heres a few more ( not necessarily from the suplement but....)

http://cobramax76.deviantart.com/gallery/#/art/Assault-Cannon-284085446?_sid=334bf006 Assault Cannon

http://cobramax76.deviantart.com/gallery/#/art/MP-Lascannon-284085893?_sid=2940766 MP Lascannon

http://cobramax76.deviantart.com/gallery/#/art/Customized-Fatebringer-Long-pistol-284085738?_sid=77a9ced3

Customized Fatebringer Long Pistol

http://cobramax76.deviantart.com/gallery/#/art/Tommygun-now-and-Tommygun-40K-style-284086015?_sid=13c7a5b

New model Thompson machinegun and the 40k variant kitted for war

http://cobramax76.deviantart.com/gallery/#/art/Meltagun-284085148?_sid=696765d9

Meltagun

Hope you enjoy these as well.

And a few more from the supplement.

http://cobramax76.deviantart.com/gallery/#/art/Belasco-Deathworks-Vigilante-Arbite-Sniper-Rif-401705865?_sid=692cfa4d

Bellasco Deathworks Vigilante Arbite Sniper Rifle

http://cobramax76.deviantart.com/gallery/#/art/Cadence-Arms-Protectorate-sniper-rifle-401705779?_sid=1cc2169a

Cadence Arms Protectorate Sniper Rifle

http://cobramax76.deviantart.com/gallery/#/art/Khayer-Addin-Moonlight-sniper-rifle-401705605?_sid=56bec3e8

Khayer-Addin Moonlight Sniper Rifle

http://cobramax76.deviantart.com/gallery/#/art/Fykos-Tragic-5-Anti-Material-Rifle-401705504?_sid=77644fd

Fykos Tragic 5 Anti-Material Rifle

I like the pictures, but for Grim Darkness too many Picatinny rails, IMHO