Precision R-hop Barrels

There is a ton of variables that play in improving how a BB flies through the air. Ensure your gun has the best barrel it can possibly have with one of our custom hand made R-hopped barrels.

17 products

Umbrella Armory R Hop Prometheus Barrels

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Umbrella Prometheus 6.03 EG inner barrel with R-hop

From $115.00

9 reviews

Umbrella Armory Flat Hoppe Madbull blue Bucking 60 degree

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Umbrella Flat-Hopped Modified Madbull Blue 60-Degree Bucking

$15.00 Sold Out

2 reviews

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Inner Barrel Assembly Stabilizer O-Ring (10pc)

$5.00

Umbrella Armory Prometheus 6.03 Inner Barrel EG with R-Hop and Prowin M4 Hop-Up Unit

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Umbrella Prometheus 6.03 EG inner barrel w/ R-Hop and Prowin M4 Hopup

From $175.00

5 reviews

Umbrella Armory Flat R Hop Hop Up Arm Set Of 2

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Umbrella Flat R-Hop Hopup Arm (Set of 2)

$12.00 $16.00 On Sale

1 review

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Surplus Krytac V2 Rotary Hop-up Unit

$14.95 $24.95 Sold Out

1 review

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Surplus Krytac bucking

$4.95 $10.00 On Sale

Umbrella Armory Prowin Maxxpro G&G Krytac Hop Up C Clip

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Umbrella C-Clip 2 Pack (PROWIN/MAXXPRO/G&G/KRYTAC)

$6.00

1 review

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Surplus Krytac Inner Barrels

From $5.00

1 review

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ProWin Hop-Up Unit

$29.00

1 review

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Surplus G&G Rotary Style Hop Up Chamber for M4 AEGs

$17.99 $34.95 Sold Out

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UA MaxxPro M4A 3D Printed Spacers

$4.99

1 review

Umbrella Armory Maxx Precision Hop-Up Unit M4A

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Umbrella Armory x Maxx Model Precision Hop-up Unit (M4A)

$74.99

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Surplus VFC Rotary Hopup Unit V2 M4

$9.99 $25.00 Sold Out

2 reviews

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UA Carbon Fiber Nylon Hop Up Lock Ring

From $2.00

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Surplus Cyma Platinum Rotary Hop Up Unit

$10.00 $20.00 Sold Out

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Krytac Mk1 CRB/Spare Upper With Barrel Hopup (no rail)

$89.99 $165.00 On Sale