HD-130 Retro Ignition Set

Tool steel ignition set featuring Retro bobbed spur hammer

7 review(s)

My ignition sets consist of hammer, sear and disconnector and are manufactured from top grade tool steel to provide precise fit and reliable, consistent function under the most demanding conditions. Each part is wire EDM'd and CNC machined for a precise +/- .0005" tolerance, heat treated to Rc 53 - 56, then honed and mirror polished to give Extreme Service in your pistol.

The Retro hammers features a bobbed spur that is machine radiused and undercut below the spur to be "bite-free" when used with an A-1 style grip safety or of course, a beavertail. These hammers are also slightly narrowed to avoid unwanted contact with the slide or ejector. The spur has deep serrations to help you keep the hammer under control and all exterior corners are CNC machine beveled to minimize snagging and abrasion. I have used the Retro hammer in combination with many beavertail grip safetys. Most interact with with no modifications, hovever some beavertails may require that a small amount equivalent to the last two serrations be ground off to let the hammer completely cock.

The sear is shaped to minimize excess material, reducing weight. The standard sear nose features a polished primary angle and breakaway angle. The TR sear uses a .404" radius with an escape angle. Fully polished surfaces mean smooth operation in the points of contact between the disconnector, sear and hammer. While I don't care to use the term "drop-in" and all that it implies, these ignition sets are prepped and polished and many folks install these parts that way with satisfactory results.

Ignition Sets available in either "in the white" carbon steel, stainless steel, or coated with black IonBOND DLC with either the traditional two angle sear or the "TR" True Radius sear with tool steel disconnector.

Again, I do not advertise my parts as drop-in. There are just too many variables in dimensions and tolerances between frames and the associated parts involved to really make that claim and it be true. You should be able to obtain a satisfactory trigger pull with these parts but any or all of these standard jobs that are involved in a 1911 trigger job are to be expected and must be dealt with satisfactorily. This includes checking &adjusting the parallelism of pin holes and their squareness to the frame, checking & adjusting the diameter of sear and hammer pins and their fit to those parts, checking and adjusting for even bearing contact on both hammer hooks with sear nose, checking and adjusting for adequate engagement in the depth of sear nose to hammer hooks, adjusting correct tension setting of sear spring leaves, checking for adequate take-up resulting in correct operation of captive half-cock notch and any adjustment necessary to ensure it’s correct operation, correct operation and adjustment of over travel stop, correct operation and re-fitting of thumb safety, correct operation and re-fitting of grip safety, correct operation and adjustment of any firing pin blocking safety system.

HD-130 Retro Ignition Set

Retro ignition set with "in-the-white" carbon steel Retro hammer and standard sear

$159.95

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HD-130-TR Retro Ignition Set

Retro ignition set with "in-the-white" carbon steel Retro hammer and "TR" sear

$179.95

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HD-130-B Retro Ignition Set

Retro ignition set with carbon steel Retro hammer coated with black IonBOND DLC and standard sear

$168.95

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HD-130-B-TR Retro Ignition Set

Retro ignition set with carbon steel Retro hammer coated with black IonBOND DLC and "TR" sear

$188.95

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HD-130-SS Retro Ignition Set

Retro ignition set with stainless steel Retro hammer and standard sear

$168.95

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HD-130-SS-TR Retro Ignition Set

Retro ignition set with stainless steel Retro hammer and "TR" sear

$189.95

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Existing reviews

HD-130 ignition set

Got the new ignition set, with a little fitting it fit in the springfield GI and looks awesome in the gun and turned out to be a great trigger job.

Best,
W.A.

From: john@HarrisonCustom.com | Date: 12/26/2010 10:49 AM

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HD-130-TR Retro Ignition Set

Just installed my true radius ignition set in for my Colt Government 1991 today. It was a fairly simple kit to install and only required minor filing on the safety to clear the sear for proper function.

Factory my trigger pull was right at 4 1/4 lbs and had lots of creep.

After it is a crisp 3 5/8 lbs with no noticeable creep and a very clean break.

I also installed a medium extreme service trigger. With proper adjustment to the set screw and minor polishing it eliminated the unnecessary amount of slack/over-travel the factory plastic trigger had.

Combining them was enough to cut group sizes in half, for me a new pistol shooter, leaving me thoroughly impressed!

The design and appearance of the bobbed spur hammer kept the classic styling I wanted to preserve in my Government model pistol. It has great eye appeal and shows attention to detail.

Thank you John @ Harrison Design for a quality product!

Jay G.

From: jmgak47@gmail.com | Date: 3/5/2013 12:01 AM

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Very Nice Parts

I purchased this set as my new series 70 repro in SS had a hammer spur which was quite rough and a sear which was a little short (about 0.402 inch which prevent me from adding a TR on it using the sear jig). So it seemed like a good idea to replace the entire ignition set. Installation was straight forward and the thumb safety did require some slight fitting to correctly engage with the new sear. Only slight issue was the disconnector had some slight rusting on it which cleaned up with 1200 grit paper and oil. The resulting trigger pull was very smooth, not glass rod like, but that was intended/expected with the TR sear.

From: andrew@motoreva.com | Date: 3/4/2015 9:53 AM

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I did not believe such high quality parts existed!

Similar to what you see in fine swiss watch part!

From: mail2mdeng@gmail.com | Date: 5/19/2015 10:28 PM

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Great ignition set!

Put these parts into a basic Mil Spec Parkerized Springfield 1911. Old trigger had a long take-up, was gritty and had an inconsistent break. Just these parts (and a little stoning of the trigger bar) and the trigger is transformed. Now no creep and crisp break. Every bit as good as my Nighthawk Customs T4, although not as light (I did not want to tune it as light, so made no other changes). The thumb safety required some tuning (too long and contact the sear before fully engaged), but otherwise was "drop-in." Also accidentally ordered two, and requested a return by email. John answered in a few hours said just send it back and he'd take care of it.

From: ohye@umich.edu | Date: 8/16/2017 8:30 AM

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Perfection

I have a new Colt 01911C Series 70 Government Model that I want to function flawlessly, yet remain faithful to J.M. Browning's original design. John was very helpful with multiple questions. Don't hesitate, buy the set as he's done 99% of the work. Best trigger pull I've had in pistol including multiple custom 1911's from Springfield, Colt & Kimber. Don't be cheap and skimp out on hammer strut. The HD-125 Extreme Service Hammer Strut is beautiful and perfectly crafted.

From: davidwilsman@icloud.com | Date: 9/23/2020 5:46 PM

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These are beautifully made parts.

I installed these parts on my SA mil-spec which already had a nice trigger via some polishing and an EGW trigger. These hammer, sear and disconnector are beautifully manufactured and polished. The edges look perfect. The sear is slightly larger and I had to take quite a lot off of the thumb safety and bend the sear spring a little bit. Trigger pull is now an average 3.5 lbs. and crisp. I am no gunsmith so it took me a while but the results are fantastic.

From: ciocc41@yahoo.com | Date: 2/21/2024 12:12 PM

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