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Home » Accessories & Parts » AEG Internal Parts » Hop-Up » M4 / M16 Series Hop-Up

KWA RM4 ERG Rotary Hopup Assembly

ID: 72937 (HU-199-1601-0352S)
199-1601-0352S
KWA RM4 ERG Rotary Hopup Assembly
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KWA

$30.00

MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.

Description

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Features

  • High quality reinforced polymer construction
  • Rotary style adjustment knob
  • Factory direct OEM replacement part
New to the KWA ProShop is the RM4 ERG rotary hop-up assembly, which comes with all parts pictured. This will fit the new RM4 Series as well as the original PTS ERG line.

Compatibility: For KWA RM4 ERG and other compatible M4 / M16 Series Airsoft AEG Rifles
Material: Polymer

Manufacturer: KWA

About KWA

Established in 1988, KWA has been the leadingdesigner and manufacturer of airsoft replica weapons for law enforcement and military training. Its reputation for quality, performance, and reliability makes KWA a recognized leader in professional airsoft products.In a time when airsoft development is focused on external replications and logos, KWA has been advancing airsoft technologies with the introduction of the NS2 Gas Blowback System and the 2GX Mechbox. Both product advancements increase the overall performance and reliability beyond all conventional standards of the industry. These products represent KWAs commitment to excellence and passion for engineering products that simply outperform.KWAs state-of-the-art manufacturing facility is located in Taiwan with an independent sales and distribution operation in the United States that services the Americas and all European Regions.

1 Customer Review

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by James W. on 07/17/2024
"Now I’ll start by saying I did not buy this for a KWA RM4 or compatible system. A standard V2 gearbox (mine was EMG) does not have the cutouts to mesh with this one. However, I was able to grind down the tabs to make it fit no problem.

I also had trouble getting a custom bucking and barrel in. Very tight squeeze.

Once you managed to get it on, operation is nice and tactile. I was able to get this to fit an older MP5 with a boxed off magwell (rather than modern domed ones).

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