Shout Out to Harrison Design

655 Views 14 Replies 11 Participants Last post by jbj0123, 3 mo ago

wrmiller

Discussion Starter · 3 mo ago

So I decided to try one of their kits in my 10mm single-stack.

Extreme service ignition set, DLC slotted hammer, TR sear. #HD-120-B-TR

I did a minor brightening of the sear engagement surface on my ceramic bench stone, but otherwise just 'dropped them in'.

Thumb safety had slightly more interference fit that I am working in, but I may touch it up with a square white ceramic to finish the fitting.

Trigger pull lightened up slightly. Hammer release is sudden and pretty crisp for a tr sear. (I really need a new trigger gauge)

Now I am seriously considering this setup in the 2011. But that will have to wait a month or two.

Well done Harrison.

Reactions: 5

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Slapshot

· #2 · 3 mo ago

John and his parts are 1st Class.

Reactions: 3

Slapshot

· #3 · 3 mo ago

I normally have to dress the secondary angle but other than that they’re drop-in.

Reactions: 2

TheCollector

· #4 · 3 mo ago

My go-to place for ignition & controls parts.

Reactions: 2

gvf1206

· #5 · 3 mo ago

And he answers the phone

Reactions: 5

wrmiller

Discussion Starter · #6 · 3 mo ago

Slapshot said:
I normally have to dress the secondary angle but other than that they’re drop-in.

When you say 'dress the secondary angle', are you increasing or decreasing the secondary angle for depth of engagement?

Slapshot

· #7 · 3 mo ago

Increasing. I don’t think he does anything to them. My “guess” would be the radius is EDM’d and done. I drop them in and if I feel some creep I hit it with some marker and address the secondary until it at least 1/3 of the width.

Reactions: 1

bladeandbarrel

· #8 · 3 mo ago

I bet those parts look familiar

Reactions: 1

Bradd_D

· #9 · 3 mo ago

I have one of John's ignition sets in my Springfield Milspec. The trigger pull is 3.75 lbs and it is the crispest and cleanest of any 1911 I've owned. I also have one of his TR sears in my 2019 Staccato P.

mrmadd

· #10 · 3 mo ago

Can't go wrong with Harrison.

dman2112

· #11 · 3 mo ago

agreed. Helped me with pinning a front sight yesterday on my commander build. Great outfit

MOshtr

· #12 · 3 mo ago

John is a class act…I have many of his parts in my 1911s and they are superb. Met him a few years back when I was in the area…. He was humble, cordial, welcoming, and full of knowledge. I will always buy from him and defer to his expertise.

flechero

· #13 · 3 mo ago

MOshtr said:
John is a class act…

Full stop!

Whether it's responding on a after hours or on a weekend. He's sets the bar when it comes to responsive service!

wrmiller

Discussion Starter · #14 · 3 mo ago (Edited)

.....

jbj0123

· #15 · 3 mo ago

Got a 1911 with some HD parts. I figured them to be some of the best. Now I know. Even more impressed to hear positive comments about the man behind them.

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