Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
Questions & Answers

Gear Up With 10% Off Tons of Amazing Gear

Eligible models will have a savings offer. Apply coupon and add the item to your cart for savings on that select model! Limited time only. Cannot be combined with other promotions or offers.
Color:
Black
Finish:
Nitride
Fabric/Material:
17-4PH Stainless Steel
Threads per Inch:
13x1 LH
Gun Make:
Steyr
Length:
2.82 in
Weight:
3.84 oz

Code: 4VI-BMB-JMC0343-RRD-4C-13LS-KM

MPN: RRD-4C-13LS-KM

10%
Product Discount
Final Sale
List: $134.95Save 53%
$63.99

Product Info for JMac Customs 4C AUG 13x1LH 4-Port Muzzle Brake w/ KeyMount

(R)ecoil(R)eduction(D)evice(4) ports(C)ompensator(13L) M13-1L threads(S)houlder(KM) KeyMount.image

The best of both worlds! Our super effective RRD4-4C muzzle brake comp with KeyMount suppressor mount!

These are designed to install with a shim kit on standard shoulder mount style barrels (factory muzzle device installed with crush washer) and can be permanently attached using the (optional) pin.

M13x1 LH Threads (Fits Most original AUG rifles)

MAKE SURE YOUR AUG HAS LEFT HAND THREADS BEFORE ORDERING, MOST NEW AUG RIFLES HAVE 1/2-28 THREADS

Keymount & X-Series Suppressor Compatibility

JMac Customs is NOT responsible for improper installation of this muzzle device or any damage to the suppressor using this device. We recommend this be professionally installed and checked to ensure alignment.

This is a licensed product through Dead Air Silencers.

Specifications for JMac Customs 4C AUG 13x1LH 4-Port Muzzle Brake w/ KeyMount:

Manufacturer: JMac Customs
Color: Black
Finish: Nitride
Fabric/Material: 17-4PH Stainless Steel
Threads per Inch: 13x1 LH
Gun Make: Steyr
Length: 2.82 in
Weight: 3.84 oz
Last Chance: Yes

Features of JMac Customs 4C AUG 13x1LH 4-Port Muzzle Brake w/ KeyMount

  • 4 Port Muzzle Brake with KeyMount

Package Contents:

  • JMac Customs 4C AUG 13x1LH 4-Port Muzzle Brake w/ KeyMount

JMac Customs 4C AUG 13x1LH 4-Port Muzzle Brake w/ KeyMount Orderable Models

List of Orderable Models

  • JMac Customs 4C AUG 13x1LH 4-Port Muzzle Brake with KeyMount, Black Nitride, Black, RRD-4C-13LS-KM , MPN: RRD-4C-13LS-KM , Code: 4VI-BMB-JMC0343-RRD-4C-13LS-KM
Compare (0)