great lakes firearms logo
  • Shop
  • About
  • Services
    • Engraved Guns
    • Light Gunsmithing
    • Ultrasonic Gun Cleaning
  • Contact
$0.00 0 Cart
  • Ammo
    • Handgun Ammunition
    • Rifle Ammunition
    • Rimfire Ammunition
    • Shotgun Shells
  • Guns
    • Combination Guns
    • Derringers
  • Handguns
    • Semi Auto Handguns
    • Single Shot Handguns
    • Revolvers
    • Other Handguns
  • Magazines
    • AR Magazines
    • AK Magazines
    • Handgun Magazines
    • Rifle Magazines
    • Shotgun Magazines
  • Optics
    • Binoculars
    • Gun Scopes
    • Gun Sights
    • Laser Sights
    • Night Vision
    • Range Finders
    • Red Dots Sights
    • Sight Magnifiers
    • Spotting Scopes
    • Thermal Sights
  • Rifles
    • AR Rifles
    • AK Rifles
    • Bolt Action Rifles
    • Lever Action Rifles
    • Pump Action Rifles
    • Semi Auto Rifles
    • Single Shot Rifles
    • Other Rifles
  • Parts
    • AR Lower Parts
    • AR Lower Parts Kits
    • AR Upper Parts
    • AR15 Parts
    • Class 3 Parts & Accessories
    • Glock Parts
    • Gun Parts
    • Gun Parts Kits
    • Handgun Parts
    • Other AR15 Accessories & Parts
  • Shotguns
    • Bolt Action Shotguns
    • Lever Action Shotguns
    • Over Under Shotguns
    • Pump Action Shotguns
    • Semi Auto Shotguns
    • Single Shot Shotguns
    • Side By Side Shotguns
    • Other Shotguns
  • Scopes
    • Scope Accessories & Scope Parts
    • Sight Magnifiers
    • Spotting Scopes
    • Thermal Sights
  • Pre-Owned
great lakes firearms logo
  • Ammo
    • Handgun Ammunition
    • Rifle Ammunition
    • Rimfire Ammunition
    • Shotgun Shells
  • Guns
    • Combination Guns
    • Derringers
  • Handguns
    • Semi Auto Handguns
    • Single Shot Handguns
    • Revolvers
    • Other Handguns
  • Magazines
    • AR Magazines
    • AK Magazines
    • Handgun Magazines
    • Rifle Magazines
    • Shotgun Magazines
  • Optics
    • Binoculars
    • Gun Scopes
    • Gun Sights
    • Laser Sights
    • Night Vision
    • Range Finders
    • Red Dots Sights
    • Sight Magnifiers
    • Spotting Scopes
    • Thermal Sights
  • Rifles
    • AR Rifles
    • AK Rifles
    • Bolt Action Rifles
    • Lever Action Rifles
    • Pump Action Rifles
    • Semi Auto Rifles
    • Single Shot Rifles
    • Other Rifles
  • Parts
    • AR Lower Parts
    • AR Lower Parts Kits
    • AR Upper Parts
    • AR15 Parts
    • Class 3 Parts & Accessories
    • Glock Parts
    • Gun Parts
    • Gun Parts Kits
    • Handgun Parts
    • Other AR15 Accessories & Parts
  • Shotguns
    • Bolt Action Shotguns
    • Lever Action Shotguns
    • Over Under Shotguns
    • Pump Action Shotguns
    • Semi Auto Shotguns
    • Single Shot Shotguns
    • Side By Side Shotguns
    • Other Shotguns
  • Scopes
    • Scope Accessories & Scope Parts
    • Sight Magnifiers
    • Spotting Scopes
    • Thermal Sights
  • Pre-Owned
$0.00 0 Cart
Click to enlarge
Home Gun Parts AR Lower Parts AR Buffer System CMMG ACTION TUNING KIT – MKG/MKGS/MK57
PPU 25 AUTO 50GR FMJ 50RD BOX 20 BOXES PER CASE
PPU 25 AUTO 50GR FMJ 50RD BOX 20 BOXES PER CASE $22.00
Back to products
HIVIZ RIFLE REAR SIGHT FOR - 3/8" DOVETAIL
HIVIZ RIFLE REAR SIGHT FOR - 3/8" DOVETAIL $20.00

CMMG ACTION TUNING KIT – MKG/MKGS/MK57

$21.00

CMMG ACTION TUNING KIT – MKG/MKGS/MK57

10 in stock

Purchase & earn 21 points!
Compare
Add to wishlist
SKU: ZND|45AFF17 Category: AR Buffer System
Share:
  • Description
  • Additional information
  • Reviews (0)
  • Shipping & Delivery
Description

FEATURES:
-Allows you to adjust the action to your preference much like changing buffers or changing gas port settings
on an adjustable gas block
-1 oz weight, 2 oz weight, 3.4 oz weight (standard 9mm), (3) .250″x.625″ roll pins

PRODUCT SPECIFICATIONS:

Dimension     1.00 X 4.70 X 4.65
Height     1.0000
Width     4.7000
Length     4.6500
TYPE/COLOR     ACTION TUNING SET
SIZE/FINISH     FITS MKG/MKGS/MK57
MATERIAL     KIT

Additional information
UPC

815835018751

Manufacturer

Cmmg

Manufacturer Part Number

45AFF17

Height

1

Dimension

1.00 X 4.70 X 4.65

Length

4.6500

Material

KIT

Width

4.7000

Color

ACTION TUNING SET

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “CMMG ACTION TUNING KIT – MKG/MKGS/MK57” Cancel reply

Your email address will not be published. Required fields are marked *

Shipping & Delivery

Related products

Compare

AR-15 MK4 RECEIVER EXTENSION NUT

AR Buffer System
$10.00
AR-15 MK4 RECEIVER EXTENSION NUT
Add to wishlist
Purchase & earn 10 points!Add to cart
Quick view
Compare

ARMASPEC SOUND MITIGATION – BUFFER CARBINE GEN3 3.3 OZ

AR Buffer System
$53.99
ARMASPEC SOUND MITIGATION - BUFFER CARBINE GEN3 3.3 OZ
Add to wishlist
Purchase & earn 54 points!Add to cart
Quick view
Compare

ARMASPEC SOUND MITIGATION – BUFFER H2 GEN3 4.7 OZ

AR Buffer System
$53.99
ARMASPEC SOUND MITIGATION - BUFFER H2 GEN3 4.7 OZ
Add to wishlist
Purchase & earn 54 points!Add to cart
Quick view
Compare

ARMASPEC SOUND MITIGATION – BUFFER H3 GEN3 5.6 OZ

AR Buffer System
$53.99
ARMASPEC SOUND MITIGATION - BUFFER H3 GEN3 5.6 OZ
Add to wishlist
Purchase & earn 54 points!Add to cart
Quick view
Compare

ARMASPEC STEALTH RECOIL SPRING – 9 GEN 4 SS/BLACK 6.4 OZ

AR Buffer System
$76.49
ARMASPEC STEALTH RECOIL SPRING - 9 GEN 4 SS/BLACK 6.4 OZ
Add to wishlist
Purchase & earn 76 points!Add to cart
Quick view
Sold out
Compare

ARMASPEC STEALTH RECOIL SPRING – H2 GEN 4 SS/BLACK 4.7 OZ

AR Buffer System
$76.49
ARMASPEC STEALTH RECOIL SPRING - H2 GEN 4 SS/BLACK 4.7 OZ
Add to wishlist
Purchase & earn 76 points!Read more
Quick view
Compare

BCM END PLATE WITH QD SOCKET – FOR AR-15

AR Buffer System
$16.95
BCM END PLATE WITH QD SOCKET - FOR AR-15
Add to wishlist
Purchase & earn 17 points!Add to cart
Quick view
Compare

BCM PISTOL RECEIVER EXTENSION – KIT W/BUFFER/SPRING/HARDWARE

AR Buffer System
$57.95
BCM PISTOL RECEIVER EXTENSION - KIT W/BUFFER/SPRING/HARDWARE
Add to wishlist
Purchase & earn 58 points!Add to cart
Quick view

    At Great Lakes Firearms of Porter, Indiana, our mission is to provide our customers with the finest firearms and ammunition available, while promoting responsible gun ownership and safety.

    Quick Links

    • About
    • Service
    • Shop
    • Blog
    • Contact

    Useful Link

    • Privacy Policy
    • Term Of Use
    • Returns Policy
    • Reviews

    Great Lakes Firearms

    • (219) 617-6679
    • 1355 Dune Meadows Dr,
      Porter, Indiana 46304

    Newsletter

    Copyright 2025, Great Lakes Firearms | All Rights Reserved.

    Shopping cart
    Close
    Start typing to see products you are looking for.
    Shop
    Wishlist
    0 items Cart
    My account