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AR-15 9mm AKTIVE Buffer/Spring Combo - CARBINE
Blitzkrieg CTS 9mm AR-15 AKTIVE Buffer & Spring
Blitzkrieg AKTIVE 9mm AR-15 Buffer & Spring

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Our Price: $91.95

Availability:: Out of Stock
Product Code: AR15-ABS-9C

Description FEEDBACK
Blitzkrieg Components 9mm AR-15 AKTIVE Buffer & Spring Combo - CARBINE

Package includes a 9mm AKTIVE Buffer and a Sprinco AR-10 Carbine Buffer Spring

This Buffer/Spring Package gives you the best combination of buffer and spring for an AR-15 9mm carbine. Blitzkrieg Components partnered with CTS Engineering to develop a 9mm AR-15 buffer using CTS's Patent Pending AKTIVE Buffer Technology. The AKTIVE Buffer design uses a solid Stainless Steel buffer body and a 2-stage buffering action to cushion the impact of the Bolt/Bolt Carrier. The buffer has a hard polymer piston head at the front that encloses a captured elastomer shock absorber and has an improved rear bumper. The 2-stage action consists of the piston head compressing the internal elastomer shock absorber, followed by the compression of the rear bumper, creating a much softer impact at the rear of the buffer tube. The impact of the bolt on the barrel as it goes forward into battery is also less than with a conventional weighted buffer or solid buffer. The hard polymer piston head has been redesigned to support the unique 9mm AR-15 application. It accommodates the solid rear profile of 9mm AR-15 bolts and it provides optimal alignment of the buffer at all times within the buffer tube. Furthermore, the polymer piston head eliminates buffer tube wear and runs completely quiet. The rear bumper is not only more substantial than a convention bumper, but it is secured to the stainless buffer body with a bolt instead of a flimsy roll pin. The blowback operation of the 9mm AR-15 drives a very heavy bolt (normally16 ounces) much harder than a standard AR-15 BCG and it needs to be dampened as much as possible to optimize the system, reduce wear on the firearm and reduce recoil and sight movement. The design is simple, yet very effective and will feel softer and run quieter than any conventional AR buffer or 9mm buffer. Spring noise is also eliminated using this buffer. Most spring noise on 9mm AR15s comes from the abrupt stop of a conventional buffer causing spring vibration. Our buffer dampens the impact for a soft landing which completely eliminates this vibration and noise. The length of this buffer stops the bolt just behind the bolt catch on a 9mm AR-15 without the need for a spacer.

We have sourced high quality buffer springs from Sprinco USA that are properly matched in strength and service life for this 9mm application. Standard AR-15 carbine buffer springs are woefully underpowered for use in a 9mm AR-15, and even extra power AR-15 carbine springs are often insufficient in strength to adequately slow down the heavy 9mm bolt before the buffer stops it if using a 14-16" carbine barrel. This high bolt velocity is very hard on triggers and buffers and causes more recoil and more muzzle jump than necessary. In many cases a standard aluminum AR-15 carbine buffer can be literally crushed down to a shorter length causing impact of the bolt key on the lower receiver damaging the weapon. This requires a stronger spring and a better/stronger buffer as well. The spring is a critical component of this system and long term service life of the spring is vital to keeping your weapon running properly. Our 9mm springs are made by Sprinco USA from certified Chrome Silicon wire stock to ISO 9001:2008 quality standards to withstand extreme heat, stress, and high cyclic rate. This ensures consistency in performance through high round counts. They are precision wound, heat treated, stress relieved and shot peened for extremely long service life and then moly plated for improved corrosion and wear resistance.

The Carbine buffer/spring combination is recommended for 9mm AR-15s with barrel lengths of greater than 10". If using a barrel that is 10" or less, use the Pistol/SBR combo. However, if you have a barrel in the 8-10" range and plan to always run it with heavy bullets, hot loads and/or suppressed, then the Carbine combo with it's stiffer spring is often the best choice.

Buffer Length: 4.0"
Buffer Weight: 5.5 ounces
9mm AKTIVE Buffer
  • Machined Stainless Steel Buffer Body
    Quiet Buffer Operation
    No Spring Noise
    No Buffer Tube Wear
    Maintains Excellent Buffer Alignment in Buffer Tube
    2 Stage Buffering Action on impact
    Matched 9mm High Performance Buffer Spring

Average Rating: 5 of 5 Total Reviews: 2

  0 of 0 people found the following review helpful:
Big improvement August 15, 2015
Reviewer: Mark K from Midlothian, VA United States  
Bought a complete 9mm CMMG AR a couple years ago. It was always a fun gun but always had disdain for the mechanical and ejection port noise to the shooters ear. I had the gun SBR'd to 10.3 inches and mounted a can on the front. Everything that was annoying before worsened. Installed the carbine combo and there was an immediate obvious improvement. This is what the gun should have been built and sold with in the first place. Not a too short a buffer and weak a__ spring for a blow back. Granted its still a blow back, but what an improvement. Smoother running Less gas, less noise less recoil. Glad I didnt go the super heavy buffer route.

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  1 of 1 people found the following review helpful:
It Works! June 10, 2014
Reviewer: J. from Missouri  
The buffer works.  I have tried many different weight 9mm buffers without much success.  The Blitzkrieg buffer does make a difference in smoothing out the recoil.   It locks back on an empty mag like a charm, runs very smoothly.  The buffer keeps it reliable.  I've had other buffers that actually hurt reliability.  My friend who owns an H&K mp5 clone shot my Colt ar-15 9mm SBR with the Blitzkrieg Buffer and without.  He agreed that it smoothed out the harshness of the blowback recoil.  Thanks again for spending the time with me in answering my questions.  I would like to continue doing business with your companies.

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