Accuracy Systems, Inc. Click for the BBB Business Review of this Guns & Gunsmiths in Byers CO 1661 Behrens RD
Byers, Colorado 80103
Tel: (303) 822-6849 Fax: (720) 367-5095
E-Mail Us at accuracyinc1@aol.com
Accuracy Systems' location is not a retail/store front. It is a machine shop with dangerous machines running. For your safety we do not accept walk-ins. PLEASE CALL FOR AN APPOINTMENT IF YOU ARE GOING TO VISIT. THANKS.

PRICES SUBJECT TO CHANGE WITHOUT NOTICE!

We are Sturm, Ruger & Company® Certified to work on your Ruger Mini 14® & 30® Rifles. You will no longer need to send your rifle to Ruger for restricted factory work. We can handle any factory replacement part work you are needing from firing pins to trigger components and more..... *All factory warranty issues will still need to be handled through Ruger® for now. Please keep in mind that we have been at the cutting edge of technology when it comes to the Mini 14® and Mini 30® rifles for many years.

Harmonic Barrel Stabilizer II with Adjustable Gas Block & Stabilizing Bar (Strut)

Torque ‎Specifications for Gas Block Screws 32 Black & 28 Inch LBS Stainless Screws

"The Most Advanced Way to Accurize your rifle other than replacing the barrel."

4/10/2019
After months of trying to get under 4 MOA, I installed the long stabilizer with adjustable gas block on my mini 14. I turned the gas down to a short ejection (4 feet) Optics are vortex diamondback 3x9 tactical.
I shot 110 yards with a 1 inch group using cheap ammo. More than once!!
Holy crap that thing works!!

Thanks Jeff Weisser          4/10/2019
Sauk Centre MN

Click here to see the Harmonic Barrel Stabilizer II with Adjustable Gas Block & Stabilizing Bar in action.

Click Here to view Actual Barrel Harmonics Video

New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block

4.250" SHORT SOCOM ILLUSTRATION PICTURED ABOVE ON MINI 14 16.5" BARREL TACTICAL.

New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block

New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block

New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block

New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block
M1A Style Mini 14 Shorter Version Stabilizer II
New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block
New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block
3.4" M1A Style Mini 14 Short (Illustrated in Picture Above) on 18.5" 580 Series Tapered barrel rifle.

Harmonic Barrel Stabilizer II Length comparison on three different rifles

New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block
Long 5.250" Stabilizer for 18.5" barrels.

New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block
Medium 4.250" SOCOM Stabilizer for 16" barrels.

New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block
M1A (Style) Short 3.4" Stabilizer for 16."or 18.5" barrels.
For those wanting that M1A (Style) Look from their Minis.


New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block
  • Top Pictured Stabilizer II - Long bar length between front of gas block to back of clamp is 3.6", Length to tip of Stabilizer bar is 5.250". For 18.5" barrels.
  • Middle Pictured Stabilizer II - Medium bar (SOCOM) length between front of gas block to back of clamp is 2.55", Length to tip of Stabilizer bar is 4.250". For 16" barrels.
  • Bottom Pictured Stabilizer II - M1A (Style) - Length between front of gas block to back of clamp is 1.7", Length to tip of Stabilizer bar is 3.400". Fits all 16" & 18.5" barrels. Works great for those wanting the M1A look on their Mini 14!!
Accuracy & Benefit Features:
  • Forget the Other Struts, Bars & Rods.
  • Weighing only 5 ounces and yet very strong.
  • 7075 Alloy For it's weight stronger than steel with no cracked gas blocks for the last 10 years. *Use correct torque settings.
  • We deliver the best of both worlds featuring the integrated Barrel Stabilizing bar (Strut) for superior Rigidity and the Tunable Gas block for controlling excessive gas pressure.
  • This translates into giving you better accuracy and it looks great too!
  • The Stabilizing bar screws directly into the face of the gas block giving you a more rigid, more stable integrated connection.
  • Available with or without our gas tuning system. (Hence the Name Adjustable Gas Block System)
  • Less busy look like others on the market which use two small set screws and an additional clamp to achieve rigidity.
  • Our single front clamp secures the Stabilizing bar to the barrel giving the rifle a cleaner less cluttered look.
  • A removable sling swivel stud is included.
  • Hole pattern matches Ruger's factory Gas block Top & Bottom for aftermarket add on accessories.
  • Will fit Amega Ranges, Ulti-MAK, Ranch Products and Accuracy Systems Scout Mounts.
  • Gas Pressure Adjustment screw is located between the barrel and stabilizing bar which protects it from being bumped and still easy to adjust.
  • Gas Pressure Adjustment screw does not have the positive Click feature as the Gen 4 gas block however there is a set screw for locking Gas Pressure adjustment Screw in place after the adjustment has been made.
  • Comes Complete with Gas block, Gas block Top, Stabilizing bar installed, Gas pressure adjustment screw, set screw, Barrel Clamp, Gas pipe, Swivel stud Installed, & 4 gas block screws.
  • Our product is not a guaranteed accuracy fix. There are to many factors that go into making a rifle more accurate. Our product will not help a worn out, shot out, out of spec bore dimension or defective barrel. There are times when a new barrel replacement would be warranted.

WHEN ORDERING PLEASE MAKE SURE OF CORRECT SIZE:

Ordering & Illustration Chart For The Harmonic Barrel Stabilizer II

LONG Stabilizer - Pictured Top - Nickel or Black - Fit All 18" barrels. Order according to your make and model below when you click the Buy Now button.

SOCOM Length Stabilizer - Pictured Middle - Nickel or Black - Fit - All 16" or 18" barrels. Order according to your make and model below when you click the Buy Now button.

M1A Length Stabilizer - Pictured 2nd From Bottom - Nickel or Black Fit - All 16" or 18" barrels. Order according to your make and model below when you click the Buy Now button.


New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block
Mini 14 Serial Numbers Starting with 181 Thru 199 Barrel Size .562" Only

Non-Adjustable Price $204.99

Adjustable Price $234.99

Adjustable With Pre-Trimmed Bushing Length $244.99
No Trimming of Bushing length

Buy Now
Mini 14 & 6.8 SPC Serial Number Starting with 580 thru 600

Non-Adjustable Price $204.99

Adjustable Price $234.99

Adjustable With Pre-Trimmed Bushing Length $244.99
No Trimming of Bushing length

Buy Now
Mini 30 Serial Number Starting with 100 thru 600

Non-Adjustable Price $204.99

Adjustable Price $234.99

Adjustable With Pre-Trimmed Bushing Length $244.99
No Trimming of Bushing length

Buy Now
Swivels Available
Buy Now

Mini 30 Tactical 16.5" Heavy Barrel
New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block
(Pictured 4.250" SOCOM Length.)
New - Now Available in the M1A Style Shorter 3.4" length

New - Now Available in Nickel Finish

Non-Adjustable Price $204.99

Adjustable Price $234.99

Adjustable With Pre-Trimmed Bushing Length $244.99 (No Trimming of Bushing length)

Buy Now
Swivels Available
Buy Now

Mini 300 Black Out
New Harmonic Barrel Stabilizer II with Integrated Adjustable Gas Block
(Pictured 4.250" SOCOM Length.)
New - Now Available in the M1A Style Shorter 3.4" length

ORDER NUMBER - HBS2625-BTHKN-BO, Fits .625" x .755" Diameter Barrel diameter for 16.5" Length barrels.
Non-Adjustable Price $204.99

ORDER NUMBER - HBS2625-BTHKN-BO-ADJ, Fits .625" x .755" Diameter Barrel diameter for 16.5" Length barrels.
Adjustable Price $234.99

ORDER NUMBER - HBS2625-BLKOUT-Tapered-Barrel, Fits .625" Diameter x 16.5" Long Tapered Barrel with Non Threaded Muzzle.
Non-Adjustable Price $204.99

ORDER NUMBER - HBS2625-BLKOUT-Tapered-Barrel-ADJ, Fits .625" Diameter x 16.5" Long Tapered Barrel with Non Threaded Muzzle.
Adjustable Price $234.99

Adjustable With Pre-Trimmed Bushing Length $244.99 (No Trimming of Bushing length)

Buy Now
Swivels Available
Buy Now


REPLACEMENT PART'S - FOR GEN 4 & HARMONIC BARREL STABILIZERS
ADJUSTABLE GAS PIPE
ADJUSTABLE GAS PIPE
  • REPLACEMENT ADJUSTABLE GAS PIPE
  • Fits GEN 4 .625 & 562 Gas Blocks
  • Fits Harmonic Barrel Stabilizers 625 & 562
Buy Now
GAS PRESSURE SCREW FOR HARMONIC BARREL STABILIZER
GAS PRESSURE SCREW FOR HARMONIC BARREL STABILIZER
Buy Now
GAS PRESSURE SET SCREW & BUFFER FOR HARMONIC BARREL STABILIZER
GAS PRESSURE SCREW FOR HARMONIC BARREL STABILIZER
Buy Now
HARMONIC BARREL STABILIZER, GEN 4, GEN 5 GAS BLOCK SCREWS
HARMONIC BARREL STABILIZER, GEN 4, GEN 5 GAS BLOCK SCREWS HARMONIC BARREL STABILIZER, GEN 4, GEN 5 GAS BLOCK SCREWS
Buy Now

WRENCHES FOR GAS PRESSURE SET SCREW & NUT FOR HARMONIC BARREL STABILIZER

HARMONIC BARREL STABILIZER, GEN 4, GEN 5 GAS BLOCK SCREWS
  • 0625" Hex Allen Wrench For the head of the set screw.
  • 3/16" Open End Wrench for the locking nut
Order Number STB WRENCHES
Buy Now

PRE-TRIMMED GAS BUSHINGS
FOR THE GEN 4 & HARMONIC BARREL STABILIZER ADJUSTABLE GAS BLOCKS ONLY
PRE-TRIMMED GAS BUSHINGS FOR THE GEN 4 & HARMONIC BARREL STABILIZER ADJUSTABLE GAS BLOCKS ONLY
  • A MUST for the adjustable gas blocks that require a shorter gas Bushing.
  • Stainless Steel.
  • .250" Length for all Serial Numbers Starting with 580 Through 600 Mini 14 ONLY! PRE-TRIM 580/600 M14
  • .270" Length for all Serial Numbers Starting with 181 Through 199 Mini 14 ONLY! PRE-TRIM 181/199 M14
  • .250" Length for all Serial Numbers Starting with 185 Through 600 Mini 30 ONLY! PRE-TRIM 185/600 M30
Buy Now

3/16/2021 5:02:57 PM Mountain Standard Time
Subject: Fw: Mini-14 Before and After Groups with Accuracy Systems Harmonic Barrel Stabilizer II

Expand the picture and you can see before and after 50-yard 3-shot group results of factory Federal MSR 62 gr. Fusion, Federal 55 gr. FMJ and PPU 62 gr. FMJ loads.
Circled bullet holes are 3-shot 50-yard groups fired off a solid sand bag rest before the gas block and stabilizer was installed.
Un-Circled holes are 3-shot 50-yard groups fired after installation on the same targets with exact same factory loads.
Worked up some loads afterwards that also group 1.4 MOA and a little under.
Ruger factory bushing was .005" too long and took .001" at a time off until the bushing was still snug enough to not allow gas blowby then torqued it to 40 in. lbs.
Thanks for a great product that works as claimed.
I can now shoot it with confidence to not miss or wound.

Mike Patrick
cell 903-263-2929
Forgot this target I'd set aside.
You'll need to expand the picture to see all the groups.
Shot factory ammo groups on the same target with different loads before and after installing the Accuracy Systems Adjustable Gas Block / Harmonic Stabilizer for an accurate comparison.
Groups with bullet holes circled are before and un-circled holes are after installation showing a clear improvement.
Mini-14's combat accuracy is what it is.
Mini-14 Before and After Groups with Accuracy Systems Harmonic Barrel Stabilizer II
3/1/2021 3:06:16 PM Mountain Standard Time
Just got my mini14 trigger group back after you guys did your advanced modification. Absolutely amazing improvement over the factory trigger! I didn't think it would be possible for anyone to make such an incredible improvement! Also appreciate the 13 day turnaround time!

Thanks so much!
Sincerely,
William Schulte
Sparta, illinois

PRICES SUBJECT TO CHANGE WITH OUT NOTICE!

Saturday, November 16, 07:51:49 PM Mountain Time

Accuracy Systems' location is not a retail/store front. It is a machine shop with dangerous machines running. For your safety we do not accept walk-ins. PLEASE CALL FOR AN APPOINTMENT IF YOU ARE GOING TO VISIT. THANKS.

Hours of operation are Monday thru Thursday 8:30 AM to 4:30 PM, Friday 8:00 AM to 12:00 PM Mountain Time Zone
(Closed Saturday & Sunday)

All prices stated in this web site are subject to change without notice.

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