Post by LegioN Reaper2204 on May 19, 2008 6:50:37 GMT -5
I found this on an AR-15 sight, and I know that most of us are shooters in RL
. Place a 5/8” x ½” x 1/16” o-ring on upper front hinge post.
Cost around $0.29
Installation: Easy just slip over front hinge post on lower receiver. Fits like a glove and no trimming.
Effectiveness: Eliminates the wiggle.
Downside: May required occasional replacement.
2. Target Pasters: Black and/or White wedged in the front hinge.
Cost around $0.02
Installation: Easy unless being done outdoors in Oklahoma and may require some trimming.
Effectiveness: Eliminates the wiggle.
Downside: May required occasional replacement and a little ribbing from miss using of the target pasters.
3. Rubber Wedge: Accu-Wedge:
Cost around $5.00
Installation: Easy, just drop in the close receiver.
Effectiveness: Poor, eliminates the rattling not all of the wiggling.
Downside: Still have some wiggle.
4. Tension Pins: JP and others
Cost around $35.00
Installation: Fairly easy to install. Replaces rear latching pin. Allen wrenches required.
Effectiveness: Eliminates the rear wiggle. Is the front still a little loose?
Downside: Must be removed to open the receiver for cleaning and considered to be a major pain by many.
5. Pressure Pin Screw. Screw added to some lower receivers which may be adjusted to apply pressure on rear hinge of the upper. This could also be called a Mechanical Accu-Wedge. Eliminates the rear wiggle and is the front still loose?
Cost around $40.00
Installation: Drill and tap hole in lower receiver
Downside: I also think the grip must be removed to adjust.
6. Bedding: JB Weld and other super glues
Cost around $10.00
Installation: Not the easiest thing to do and still may be the best.
Effectiveness: Eliminates the wiggle.
Downside: May glue your rifle together.
Just leaving a little room for some more ways to lick the wiggle
10. So it wiggles. Many shooters do not worry about it and does not seem to matter when shooting and using a sling. If it did affect any shooting it may be when shooting offhand, however I do not think David Tubbs could see it. There have been a number of postings that have seen group size improvements by eliminating this wiggling.
Doing nothing about it cost nothing.
Nothing to install.
Nothing to worry about it.
My personnel experience noticing any affect caused by this wiggle was doing some ammo testing and shooting from a bench rest. The bench rest set up for my AR included using a Hart Accuracy Asset attached to the front hand guard. I also added an extension to the bottom of the rear stock which kept the rifle level as rifle moved forward and backward on the bench rest. The complete system was a return battery design and even had a pneumatic device to actuate the trigger. During one test I noticed about two minutes of angle right to left movement after each shot while magazine feeding the rifle. This movement I believed was due to the wiggle between the upper to lower receiver. After each shot the next round in the magazine would push on the opposite side of the carrier and cause the upper and lower to twist back and forth. I could see the effect of the twisting through the scope on the test target each time I return the rifle to battery position on the rest. I also feel that twisting or upper to lower wiggle on my rifle may be worth a quarter minute of angle when shooting the lightly supported off hand position or when I am using a bipod. When shooting any of the tight sling positions this wiggle is removed or not allowed to happen so accuracy is not affected.
Larry Medler
P.S. where are ths spawn points in RL?
Reaper
. Place a 5/8” x ½” x 1/16” o-ring on upper front hinge post.
Cost around $0.29
Installation: Easy just slip over front hinge post on lower receiver. Fits like a glove and no trimming.
Effectiveness: Eliminates the wiggle.
Downside: May required occasional replacement.
2. Target Pasters: Black and/or White wedged in the front hinge.
Cost around $0.02
Installation: Easy unless being done outdoors in Oklahoma and may require some trimming.
Effectiveness: Eliminates the wiggle.
Downside: May required occasional replacement and a little ribbing from miss using of the target pasters.
3. Rubber Wedge: Accu-Wedge:
Cost around $5.00
Installation: Easy, just drop in the close receiver.
Effectiveness: Poor, eliminates the rattling not all of the wiggling.
Downside: Still have some wiggle.
4. Tension Pins: JP and others
Cost around $35.00
Installation: Fairly easy to install. Replaces rear latching pin. Allen wrenches required.
Effectiveness: Eliminates the rear wiggle. Is the front still a little loose?
Downside: Must be removed to open the receiver for cleaning and considered to be a major pain by many.
5. Pressure Pin Screw. Screw added to some lower receivers which may be adjusted to apply pressure on rear hinge of the upper. This could also be called a Mechanical Accu-Wedge. Eliminates the rear wiggle and is the front still loose?
Cost around $40.00
Installation: Drill and tap hole in lower receiver
Downside: I also think the grip must be removed to adjust.
6. Bedding: JB Weld and other super glues
Cost around $10.00
Installation: Not the easiest thing to do and still may be the best.
Effectiveness: Eliminates the wiggle.
Downside: May glue your rifle together.
Just leaving a little room for some more ways to lick the wiggle
10. So it wiggles. Many shooters do not worry about it and does not seem to matter when shooting and using a sling. If it did affect any shooting it may be when shooting offhand, however I do not think David Tubbs could see it. There have been a number of postings that have seen group size improvements by eliminating this wiggling.
Doing nothing about it cost nothing.
Nothing to install.
Nothing to worry about it.
My personnel experience noticing any affect caused by this wiggle was doing some ammo testing and shooting from a bench rest. The bench rest set up for my AR included using a Hart Accuracy Asset attached to the front hand guard. I also added an extension to the bottom of the rear stock which kept the rifle level as rifle moved forward and backward on the bench rest. The complete system was a return battery design and even had a pneumatic device to actuate the trigger. During one test I noticed about two minutes of angle right to left movement after each shot while magazine feeding the rifle. This movement I believed was due to the wiggle between the upper to lower receiver. After each shot the next round in the magazine would push on the opposite side of the carrier and cause the upper and lower to twist back and forth. I could see the effect of the twisting through the scope on the test target each time I return the rifle to battery position on the rest. I also feel that twisting or upper to lower wiggle on my rifle may be worth a quarter minute of angle when shooting the lightly supported off hand position or when I am using a bipod. When shooting any of the tight sling positions this wiggle is removed or not allowed to happen so accuracy is not affected.
Larry Medler
P.S. where are ths spawn points in RL?
Reaper