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Product Features:

  • 6.9″ Receiver Extension Tube for M4 M16
  • Gives the user more control over the rifle in a close quarters environment
  • Has six precision-machined notches on the underside for maximum flexibility in setting length-of-pull with adjustable buttstocks
  • Lets you install a mil-spec stock on a civilian carbine or refit a rifle
  • Machined from a lightweight aluminum extrusion before hardcoat anodizing with a wear-resistant matte black finish
  • Offers operators the ultimate in mission adaptability
  • Designed with maximum ergonomic flexibility
  • Comes with screw set for easy installation
  • Color: Black as shown in the picture
  • Size: 176 x 29 x 32 mm / 6.9 x 1.131 x 1.248 inch
  • Net Weight: 105g / 3.68oz
  • Tube Diameter: 22mm / 0.858 inch

Package Contents:

  • 1 x Receiver Extension Tube
  • 1 x Screw Set
Available Shipping Method Tracking NO. Estimated Delivery


1) Estimated delivery time includes processing time and actual shipping time. Normally our processing will take 1-2 working days.

2) Estimated Delivery Time shown above is only for reference, since actual delivery time depends on shipping service selected, delivery schedule and local customs clearance time, especially during peak periods.

3) Shipping Costs shown include fuel surcharges and may change a bit due to the fluctuation of currency exchange rates.

4) For the order with only one item (only one item):

a. if your item is less than 20USD and need registered freight, you need to pay certain upgrading fee.
b. if your item is more than 20USD, our system will ship your item with tracking number automatically free of charge.

5) For the order with multiple items (multiple items):

a. if most items' price is more than 20USD in one order, we will send the parcel with tracking number for free.
b. if most items in one order is low value with reasonable weight and size, our Checkout process is able to identify such order giving free registered freight on it.
c. if most items in one order are low value but with relatively high weight (i.e. Value: Weight ratio is not in reasonable range), we will charge certain discounted upgrading fee if you need tracking number.

Custom Tax

A. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility.

B. Please check with your country's customs office to determine what these additional costs will be prior to buying.

Return Policy

All the cell phones you bought from come with 6-month warranty and all the items we offer have a 3-month warranty. See additional details, please refer to our Shipping & Returns or our FAQ Return Policy.

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Customer Reviews
Average customer review:
5 (5out of 5)
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Showing 1 reviews

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by apolloua ( UA ) 2013-01-20 12:21:32 GMT

Качественно выполненная трубка, очень легкая. Становится без всяких проблем и люфтов.
Покраска выполнена на высшем уровне, должна быть стойкая к износу.
Упакована в картонную коробку, что сказывается на внешнем виде товара и исключает механические повреждения во время доставки.
Посылка пришла в течении 2х недель.
Все на высшем уровне.

Add a comment(1)
Was this review helpful to you?
  • Reply by Zahariea:
    Вы можете сфотографироваться с ним установлены?
    Я прошу вас точно измерить внешние, внутренние и общей длины трубопровода.


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