Looking to attach a bipod to my Mossberg ATR 100 270. Does not currenly have a swivel mount. Any suggestions ?

You'll need scope mounts to fit that MODEL of Mossberg rifle and a set of rings that attaches the scope to the mounts.

Apparently the three previous folks have no idea that a Mossbergt 100 ATR is a RIFLE not a shotgun. Regretfully it is a press fit at the rear (multiple splines, pressure fitted into multiple recesses). What that means in English is that it's a factory fix. Sorry!

The wall mount is not made to be fit into the base, it is attached to the back the TV, TV uses what they call VESA mounting which had different pattern for each TV. Look at your TV user manual to find out the VESA mounting number.
If you want TV wall mount that can swivel you can try looking here: http://www.mountsdirect.com//index.php?cPath=1_4&osCsid=b3fd26fc27f668e207c3741b09abfe51&gclid=CJrL-5Dx1acCFYrs7QodUiUq9Q

http://www.toptvmounts.com/collections/swivel-tv-mounts?gclid=CK7kzPrx1acCFYXu7QodlFc4-A

Or Google "swivel wall mount"
I got my from COSTCO.

For any top mounted rail on any gun, you'll need the gun to have or be drilled for the proper screws. Your Mossy, if it's already drilled, will have four tiny little screws plugging four tiny little holes on the topo fthe receiver. Remove those, put the rail in place, and replace the screws with the ones included in the rail kit. If your gun IS NOT drilled, you can have it drilled....which will cost more than the rail kit....or you can skip that rail and go for a clamshell or side mount rail instead. Both of those use the ejector screw and the trigger retainer pin to attach them.

Hi,
E020 Drum/Developer-related error
XX=01:Y XX=02:M XX=03:C XX=04:K XX=00:Any color
XX10 In INIT control of the initial setting,
SGNL is less than 62. Clean the ATR sensor window, Check on attachment of the developing unit, Check on a break
in the ATR sensor, Replace the ATR sensor
XX11 In INIT control of the initial setting,
REF is less than 62. Check on a break in the ATR sensor, Replace the ATR sensor
XX12 In INIT control of the initial setting,
SGNL is 960 or more. Check on a break in the ATR sensor, Check on operation of the shutter, Replace the ATR sensor
XX13 In INIT control of the initial setting,
REF is 960 or more. Check on a break in the ATR sensor, Replace the ATR sensor
XX50 When density data is computed using
SGNL value and REF value in ATR
control, REF becomes 0 due to backup
data corruption.
Clean the ATR sensor window, Check on
attachment of the developing unit, Check on a break
in the ATR sensor, Replace the ATR sensor,
Replace the DC controller PCB
XX51 When density data is computed using
SGNL value and REF value in ATR
control, the sensitivity coefficient
becomes 0 due to backup data
corruption.
Replace the DC controller PCB
XX81 P-SENS-P is less than 255 when a base
(drum face) of patch detection is read
out.
Clean the patch image reading sensor window
XX90 A computation result of patch reading in
patch detection is less than 16. Check on attachment of the developing unit, Replace the patch image reading sensor, Replace
the developing unit
XX91 A computation result of patch reading in
patch detection is 1008 or more. Check on toner leak from toner buffer in the developing unit, Replace the patch image reading
sensor
XX92 A computation result of patch reading in
patch detection is less than 42 for Y/M/
C and less than 73 for Bk 3 times in
succession.
Check on attachment of the developing unit,
Replace the patch image reading sensor, Replace
the developing unit
X93 A computation result of patch reading in
patch detection is 522 or more for Y/M/
C and 543 or more for Bk 3 times in
succession.
Check on toner leak from toner buffer in the
developing unit, Replace the patch image reading
sensor
XXA0 In ATR control, SGNL is less than 62. Clean the ATR sensor window, Check on
attachment of the developing unit, Check on a break
in the ATR sensor, Replace the ATR sensor
XXA1 In ATR control, REF is less than 62. Check on a break in the ATR sensor, Replace the
ATR sensor
XXA2 In ATR control, SGNL is 960 or more. Check on a break in the ATR sensor, Check on
operation of the shutter, Replace the ATR sensor
XXA3 In ATR control, REF is 960 or more. Check on a break in the ATR sensor, Replace the
ATR sensor
XXA8 In ATR control, the detected T/D ratio is
upper than its upper limit (13%) 10
times in succession.
Check on toner leak from toner buffer in the
developing unit, Replace the ATR sensor
XXA9 In ATR control, the detected T/D ratio is
lower than its lower limit (3%) 3 times
in succession.
Check on attachment of the developing unit,
Replace the ATR sensor

and,

E070 ITB HP detection error
0001 HP of the ITB fails to be detected even
after the specific period of time.
Abnormality of the HP sensor,
Deviation of the belt from its position to
either edge, or soiling of the seal
Clean the HP detection seal, Clean/Replace the HP
sensor


...so, I pressume that something is broken, because you are getting these two error codes... call service, or write on [email protected] for service manual.

Hope that helps!

E020 Drum/Developer-related error
XX=01:Y XX=02:M XX=03:C XX=04:K XX=00:Any color
XX10 In INIT control of the initial setting,
SGNL is less than 62. Clean the ATR sensor window, Check on attachment of the developing unit, Check on a break
in the ATR sensor, Replace the ATR sensor
XX11 In INIT control of the initial setting,
REF is less than 62. Check on a break in the ATR sensor, Replace the ATR sensor
XX12 In INIT control of the initial setting,
SGNL is 960 or more. Check on a break in the ATR sensor, Check on operation of the shutter, Replace the ATR sensor
XX13 In INIT control of the initial setting,
REF is 960 or more. Check on a break in the ATR sensor, Replace the ATR sensor
XX50 When density data is computed using
SGNL value and REF value in ATR
control, REF becomes 0 due to backup
data corruption.
Clean the ATR sensor window, Check on
attachment of the developing unit, Check on a break
in the ATR sensor, Replace the ATR sensor,
Replace the DC controller PCB
XX51 When density data is computed using
SGNL value and REF value in ATR
control, the sensitivity coefficient
becomes 0 due to backup data
corruption.
Replace the DC controller PCB
XX81 P-SENS-P is less than 255 when a base
(drum face) of patch detection is read
out.
Clean the patch image reading sensor window
XX90 A computation result of patch reading in
patch detection is less than 16. Check on attachment of the developing unit, Replace the patch image reading sensor, Replace
the developing unit
XX91 A computation result of patch reading in
patch detection is 1008 or more. Check on toner leak from toner buffer in the developing unit, Replace the patch image reading
sensor
XX92 A computation result of patch reading in
patch detection is less than 42 for Y/M/
C and less than 73 for Bk 3 times in
succession.
Check on attachment of the developing unit,
Replace the patch image reading sensor, Replace
the developing unit
XX93 A computation result of patch reading in
patch detection is 522 or more for Y/M/
C and 543 or more for Bk 3 times in
succession.
Check on toner leak from toner buffer in the
developing unit, Replace the patch image reading
sensor
XXA0 In ATR control, SGNL is less than 62. Clean the ATR sensor window, Check on
attachment of the developing unit, Check on a break
in the ATR sensor, Replace the ATR sensor
XXA1 In ATR control, REF is less than 62. Check on a break in the ATR sensor, Replace the
ATR sensor
XXA2 In ATR control, SGNL is 960 or more. Check on a break in the ATR sensor, Check on
operation of the shutter, Replace the ATR sensor
XXA3 In ATR control, REF is 960 or more. Check on a break in the ATR sensor, Replace the
ATR sensor
XXA8 In ATR control, the detected T/D ratio is
upper than its upper limit (13%) 10
times in succession.
Check on toner leak from toner buffer in the
developing unit, Replace the ATR sensor
XXA9 In ATR control, the detected T/D ratio is
lower than its lower limit (3%) 3 times
in succession.
Check on attachment of the developing unit,
Replace the ATR sensor


BUT FIRST: Check the ATR SENSOR, left from the developing rotor you have an "rail" with atr sensor - vacume it!!!!! Vacum all dev units, and copier

That seems to be a good question. Page 12 of the manual refers to the mounting instructions for alternative mounts for specific details. I'm guessing that Hitachi has alternative mounts for specific models, and the swivel removal instructions would be found there.

I'll keep looking. Please post if you find the instructions.

look on the internet you will find a blow up picture of the mossberg 500 in this list of guns
type in shotgun schematics

12 inches is the minimum for mounting the unit to the wall. I mounted a 42 inch LCD using a Sanus tilt (non-swivel) mount from Best Buy. We mounted it on wooden beams exactly 12 inches apart. Works great!