Conversion Unit - Standard Barrel / Adjustable Iron Sight Rail

SKU: NCG-001

Chamber Options:
Front Sight Options:
Rear Sight Options:
Magazine Options:
Spring Option:   Add a spare 10# recoil spring for use with high velocity ammos (Add $2.00)
Qty: - +
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All orders are being processed and shipped as quickly as possible and in the order that they were received. Current wait time is anywhere from 14 to 16 weeks.
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Our conversions are NOT designed for hyper velocity ammo (1400 FPS or greater). Use of this ammo will damage the slide and will not be covered under warranty. (ie:  CCI Stinger, Remington Yellow Jacket, Aguila Super Maximum etc.)

Full Description-

Nelson Custom Guns 1911 22lr Conversion Unit with a standard length barrel and adjustable Iron sights with your choice of front and rear sight.

Included in kit
Standard Length Barrel
Adjustable Iron Sight
2 Magazines (Your choice of configuration)
1 Slide Stop with Slide Stop Pin
1 Recoil Buffer
1 9# Recoil Spring
1 Take Down Tool
1 Mag Loading Tool
1 Single Pistol Hard Case
1 Spare 8# recoil spring
1 Spare Buffer

Front sight choices are - Standard, Patridge, Red fiber optic, Green fiber optic and Amber fiber optic

Rear sight is an Eliason style adjustable sight that is custome made to match the sight picture of a BoMar (Same size notch) and you have a choice of a square blade or the standard rounded blade (sometimes refered to as "dehorned") where the top outside edges are rounded.

Mike E on 07/08/2021 06:39am
This review is long over due, I have Larry's conversion unit since 2013 & after more than 100K rounds(I stop keeping notes after that)it shoots & function well. Only issue I had which is my fault is I lost 1 top railing screw way back in 2015 & Larry took care of it & sent me a replacement. The conversion unit runs so well that I have stop using my colt conversion that I have since the early 80's. If you guys have any doubt regarding Larry's conversion unit Do Not you will be so happy with it. Mike
Clarence Mathewson on 07/20/2020 05:38am
No Excuses - or Alibis

After much deliberation I chose a Nelson Conversion with iron sights to enable economical indoor practice on a Service Pistol frame. The unit is well engineered; materials and workmanship are top-notch. I expected some minor magazine tuning (call Larry, he'll talk you through it) and find it works equally well on my Gold Cup .45 and my SA 9mm Range Officer - with no ejector modifications required to either. Installation is as easy as the web site claims and field stripping and reassembly is easier than a 1911.

I function tested it with Aguilla Standard Velocity, Eley TenX, and CCI Paper Box. The Aguilla and Eley functioned fine with the nine-pound recoil spring; I needed to change to the eight-pound spring to get reliable function with CCI. After running about two bricks of CCI through it in NMC practice I have yet to experience a failure - NO ALIBIS!

I don't have access to a machine rest and I don't have an optical sight for it, so 'accuracy' testing was off a bench over sandbags with iron sights. At 25 yards I get five-shot groups that occupy about a third of the B-8 X-ring. My 70-year old eyes don't do any better with my Model 41.

Back in the '70s conventional wisdom for aspiring Bullseye shooters was to buy a Gold Cup and a Model 41 or Supermatic and shoot .22 and Hardball until you went Distinguished and fired in the National Trophy Team Match. There wasn't much of a selection of .22 conversions in those days. Today I think I'd recommend a quality 1911 .45 and a Nelson Conversion instead. Use the money you save for practice ammo. Be sure to dry-fire a lot. It's good for the soul and won't hurt your dry-fire safe Nelson Conversion a bit.
Scott Hammond on 01/06/2020 07:51am
Outstanding! I use it for steel challenge. The unit is high quality and scary accurate!
Tom on 06/08/2017 09:57am
I've been shooting a std Nelson conversion on a Colt receiver for 2 years @ 25 and 50 yards, with superb accuracy and 100% reliabilityIMO, this is THE BEST Conversion available for the 1911 platform.
Gene on 01/17/2016 04:46pm
The perfect conversion unit for practical shooters. Great accuracy, great reliability, durable, drop-able magazines, and mags for single and double-stack. This conversion meets all needs. Substantially better than many other conversions, as well as dedicated 1911-ish .22 pistols. Zeeero complaints!
J.K. on 06/28/2015 03:46pm
Purchased 8 months ago for Bullseye shooting. Ransom rested 7/8" @ 50 yards. My scores indoor and out have gone up. No malfunctions to date.
D Rader on 05/08/2015 12:11pm
I've put thousands of rounds through mine. Flawless. The few issues I had were immediately corrected by Larry. You can't get a better conversion anywhere.
George on 08/26/2014 08:17pm
Purchased with both the iron sight and scope rail. Ran on a Sig Tac rail frame. No malfunctions and a tack driver at 25 yds. My wife loves this setup!

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