Относно оксидацията, в сайта на Мосберг се предлага специално като услуга допълнително оксидиране или фосфатиране, което струва 35 долара. Явно наистина е често явление или фабричен недостатък. Лошото е, че се предлага само за цевите. Освен това се предлага в щатите и тази цена е за там. Не знам дали няма да е по-изгодно да се поръчат нови цеви, за да се избегне транспорта в двете посоки.
Във вестник Наслука има постоянна обява на някакъв инженер-химик за оксидация с някакъв разтвор за 35 лева.
А това надолу е списъкът с резервни цеви предлагани от Мосберг. Цените са в долари и важат за щатите.

2005 ACCESSORY BARREL and SUGGESTED RETAIL PRICE GUIDE

GA. SKU # DESCRIPTION CHOKE FINIS $ Sug. Retail

500® MOSSBERG AND 88® MAVERICK FIELD BARRELS, 6-SHOT, 3" chambers (fires 2 3/4"or 3" shells)
12 90130 28" VENT RIB PORTED ACCU SET BLUE $148
12 92241 28" VENT RIB PORTED ACCU SET BLUE $155
12 90135 24" VENT RIB ACCU SET BLUE $148
12 90140 20" VENT RIB ACCU SET BLUE $148
12 90015 18.5" PLAIN, BEAD SIGHT CYLINDER BORE BLUE $74
20 90136 26" VENT RIB ACCU SET BLUE $148

500® and 88® SLUG BARRELS (6-SHOT, 3" chambers)
12 92056 24" Integral Scope Base PORTED FULLY RIFLED BORE BLUE $148
12 92256 24" Integral Scope base PORTED FULLY RIFLED BORE PARKERIZED $148
12 98049 24" FIBER OPTIC RIFLE SIGHTS PORTED FULLY RIFLED BORE BLUE $155
12 92049 24" RIFLE SIGHTS PORTED FULLY RIFLED BORE BLUE $148
12 90249 24" RIFLE SIGHTS PORTED FULLY RIFLED BORE WOODLANDS CAMO $155
12 90055 24" RIFLE SIGHTS CYLINDER BORE BLUE $105
12 95302 24" MUZZLELOADER CONVERSION BARREL WITH RIFLE SIGHTS .50 CAL RIFLED BORE BLUE $103
20 90063 24" INTEGRAL SCOPE BASE PORTED FULLY RIFLED BORE BLUE $148
20 92062 24" RIFLE SIGHTS PORTED FULLY RIFLED BORE BLUE $148
20 90060 24" RIFLE SIGHTS CYLINDER BORE BLUE $105

"NEW" 535® PUMP ACTION (3 1/2" chamber)
* Not Interchangeable with 500, 835, 88 or 91 models*
12 91300 28" VENT RIB, Front Fiber-Optic Sight ACCU-SET Mossy OakNew Break-Up $184
12 91310 24" Rifle Sights FULLY RIFLED BORE Mossy Oak New Break-Up $177
12 91315 24" Integral Scope base FULLY RIFLED BORE Mossy Oak New Break-Up $177
12 91320 22" Adj Fiber Optic sights XX-Full Turkey Mossy Oak New Break-Up $184

835® ULTI-MAG® BARRELS (handle 2 3/4", 3" and 3 1/2" shells)
12 90831 28" VR PORTED Accu-Mag Set Matte $162
12 92831 28" VR PORTED Accu-Mag Set WOODLANDS CAMO $170
Trophy Slugsters w/scope base
12 90820 24" Integral Scope Base PORTED FULLY RIFLED BORE BLUE $162
12 92830 24" Integral Scope Base PORTED FULLY RIFLED BORE Matte $162
12 90720 24" Integral Scope Base PORTED FULLY RIFLED BORE WOODLANDSCAMO $170
12 96830 24" Integral Scope Base PORTED FULLY RIFLED BORE Realtree
HARDWOODS $192
Slugsters w/rifle sights
12 98802 24" Adj. Fiber Optic rifle sights PORTED FULLY RIFLED BORE BLUE $170
12 92802 24" RIFLE SIGHTS PORTED FULLY RIFLED BORE BLUE $162
12 92803 24" RIFLE SIGHTS PORTED FULLY RIFLED BORE WOODLANDS CAMO $170
12 90800 24" RIFLE SIGHTS PORTED CYLINDER BORE BLUE $130

"NEW" 935 MAGNUM™ Autoloader BARRELS (3"- 3 1/2" shells)
12 90932 28" Vent Rib, Fiber-Opticfront sight Accu-Mag set Mossy Oak New Break-Up $207
12 90931 24" Vent Rib, Fiber-Opticadjustable sights Ulti-Full Turkey tube Mossy Oak New Break-Up $207
12 90910 24" Rifle Sights Fully Rifled Bore Matte $177
12 90920 24" Integral Scope Base Fully Rifled Bore Matte $177
12 90936 24" Rifle Sights Fully Rifled Bore Mossy Oak New Break-Up $199
12 90938 24" Integral Scope Base Fully Rifled Bore Mossy Oak New Break-Up $199

REMINGTON® 870® BARRELS (3" chambers)
12 91356 24" INTEGRAL SCOPE BASE FULLY RIFLED BORE PARKERIZED $170
12 91048 24" RIFLE SIGHTS FULLY RIFLED BORE PARKERIZED $170
12 90048 24" RIFLE SIGHTS FULLY RIFLED BORE BLUE $170
12 91335 18.5" PLAIN, BEAD SIGHT CYLINDER BORE PARKERIZED $103
12 90335 18.5" PLAIN, BEAD SIGHT CYLINDER BORE BLUE $103
12 91330 24" RIFLE SIGHTS CYL BORE PARKERIZED $125