Out of curiosity and possibly boredom, I decided to hook up with a buddy to test the accuracy of a $130.00 US (RSOV pricing) AGM M4 GBBR.
NOTES:
Wind was NOT a factor in testing
Stock AGM M4 was used with upgraded hop-up rubber/bucking
Bi-pod was used
Distances: 20 meters (65 feet) and 30 meters (98 feet)
Hop-up was set for each distance prior to test
Bad Bull and SIIS .25g BBs were used
Here are the results:
Distance: 20 Meters
Distance: 30 Meters