Contact Us Tel:(626) 286-0360 Store Locations
Phone Support M-F 7am-5pm PST
Browse by Type or Category
FREE SHIPPING for orders over $149! New deals released hourly and daily. See Deals Here!

A&K Hop-Up Unit for A&K STW Series M4 Airsoft Training Rifles

ID: 36258 (HU-STW-G021)
3.0 stars, based on 1 reviews
A&K Hop-Up Unit for A&K STW Series M4 Airsoft Training Rifles
Hover or touch above to zoom
Product image 1

$15.00 $5.99

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.


  • Brass and metal alloy construction
  • Drop in installation
  • Hardware included
  • Factory OEM component
Compatibility: A&K and other compatible STW series M4 Airsoft training rifles
Material: Metal alloy, brass

Manufacturer: A&K

About A&K

A&K has been in business for more than a decade, boasting a huge selection of popular rifle models as well as unique platforms; Machine Guns, SMGs, DMRs, and even WWII replicas. A&K provides a great lineup of Airsoft products at a great value.

1 Customer Review

(Write a review)

by Williams A. on 08/22/2018
"If you upgrade to this scroll hopup chamber then you do need upgrade the inner barrel too. The OEM old version inner barrel is not compatible with this new chamber. Now I need buy the A&K tight bore to use with this new scroll chamber that I've already bought recentely :O

I think is a good chamber and sealed, but any advice about this possible missunderstanding.

Comments & Community

Discuss about A&K Hop-Up Unit for A&K STW Series M4 Airsoft Training Rifles with your friends and fellow shoppers!

Have an urgent question about this item? Contact us, our resident experts are standing by to answer your questions!

California Proposition 65 Warning: Cancer and Reproductive Harm -