SixG HSB – High Speed Buffer

Snappier firing and better control for high power gas use

Our simple yet effective High Speed Buffer (HSB) spacer serves to reduce semi auto shot cycle time, manage recoil energy when using high power gas & give better shot consistency.

We love a TM MWS and its definitely a hard gun to improve on from standard, but we endeavor to increase the performance and realism of this great GBBR, no one really owns a GBBR for an insane rate of fire, but for the realism and performance it gives on semi auto – so we have spent a lot of time trialing different preloads and other recoil buffer springs to make our SixG HSB spacer a product that works and is an improvement over the original.

The SixG HSB spacer is designed to improve the overall performance of the gun, it is not intended to increase recoil.

img_3311.jpg

 

SixG HSB Spacer performance benefits:

  • Reduced shot cycle time – hence the name ‘High Speed Buffer’ – bolt carrier group (BCG) returns to battery faster ready for the next shot.
  • Increased buffer spring preload and progression control excess recoil energy when using high power gas – protecting the gun from violent shock and vibration, without the penalty of high gas consumption that stiffer buffer springs use.
  • Typical 8 FPS power increase over standard buffer spring only.
  • The increased preload along with the faster return to battery seats the nozzle into the bucking firmly for a better gas seal.
  • Still utilizes the MWS end of stroke bumper.
  • Installs in seconds – no tools required!
  • Stainless steel for extreme wear resistance
  • And the best bit… reduces the MWS recoil ‘twang’ in your ear!

 

IMG_3312

 

GAS CONSUMPTION TESTING:

Standard MWS – 104 BBs on single gas fill – Abbey VERTEX – 18c ambient temp

Standard MWS shooting test video – opens in new tab/window

SixG HSB spacer – 99 BBs on single gas fill – Abbey VERTEX – 18c ambient temp

SixG HSB spacer shooting test video – opens in new tab/window

As can be seen gas consumption increase over standard buffer spring is only 5 BBs per single gas fill, realistically in play you would not run more than 2 full loads (70rds) on 1 gas fill so the consumption is nullified.

 

RATE OF FIRE TESTING:

Standard MWS – Baseline figures on 0.2g BB

IMG_3313

Standard MWS with SixG HSB spacer – Comparative figures on 0.2g BB

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  • Faster semi auto ROF – due to faster return to battery
  • Slightly slower full auto ROF – due to increased work (stiffer recoil system)
  • Increased FPS due to nozzle bucking seal improvement – typically 8 FPS, full auto FPS is not accurate to measure.
  • Increased shot FPS consistency due to nozzle bucking seal improvement

 

To fit the following models;

  • Marui GBBR – CQBR / BLOCK 1 MWS
  • Marui GBBR – M4 MWS
  • Marui GBBR – M4A1 Carbine
  • Marui GBBR – MTR16

 

HOW TO PURCHASE: SixG HSB Spacer £31.00 including UK mainland delivery, please email us with your order.

 

HOW TO – INSTALLATION INSTRUCTIONS:

  1. Remove magazine
  2. Check bolt is forward / pull trigger with fire selector on SEMI
  3. Pull rear receiver pinIMG_3315
  4. Open upper recieverIMG_3316
  5. Push buffer spring retaining block downIMG_3318
  6. Release and remove buffer springIMG_3319
  7. Push in SixG HSB with chamfer facing towards butt stockIMG_3322
  8. Lubricate spring with supplied Moly-slip grease re-fit
  9. Close reciever
  10. Re-fit rear receiver pin – GOOD TO GO!

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