Sig Sauer P220 Nitron .45 ACP
Model: 220R-45-BSS
Sig Sauer P220 Nitron .45 ACP
Model: 220R-45-BSS
Full Specifications
About This Firearm
The Sig Sauer P220 Nitron is a full-size hammer-fired .45 ACP built for duty use and home defense. Sig has discontinued it, so it's a used buy. It is a single-stack .45 on an alloy frame, which is why it weighs 30.4 oz while carrying eight rounds, and SIGLITE night sights came fitted from the factory.
There is no manual safety on it. A decocking lever drops the hammer for a long first pull, and behind that sit an automatic firing pin safety block, a safety intercept notch and a trigger bar disconnector. Two 8-round steel magazines came in the box. The E2 grip panels are slimmer than the earlier P220 shells and can be changed for the older profile. The barrel is 4.4 inches, the pistol stands 5.5 inches tall, and the stainless slide is finished in Nitron. There is no optic cut.
If you're cross-shopping among current guns, the HK HK45 is the double-stack equivalent at an MSRP of $949, with ten rounds, a Picatinny rail molded into the frame and a combined safety and decocking lever, at 8.03 inches long and 1.54 inches wide. The CZ 97 B is the steel-framed route at an MSRP of $743, with ten rounds and a manual safety instead of a decocker, 8.3 inches long and 1.4 inches wide.
Best For
Strengths & Limitations
- SIGLITE night sights were standard, so a used example should already have tritium front and rear.
- Two steel magazines came with the pistol, and the eight-round single-stack body is shared across the P220 family.
- The alloy frame is hard coat anodized, which wears to grey instead of rusting where a holster rubs.
- Sold used, so tritium age, spring condition and frame wear all have to be checked before trusting it.
- No optic cut and no rail on this version, so a light or a dot both need another model.
- Eight rounds in a full-size pistol, where the HK HK45 and the CZ 97 B both hold ten.
Category Rankings
How the Sig Sauer P220 Nitron .45 ACP ranks among full-size .45 ACP handguns.
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Calculate trajectory, drop, and energy for .45 ACP ammunition.
.45 ACP Ballistics →Where to Buy
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Frequently Asked Questions
Where was it made?
In the United States.
Does it have a manual safety?
No. It uses a decocking lever with an automatic firing pin safety block, a safety intercept notch and a trigger bar disconnector.
What is the E2 grip?
Sig’s slimmer grip shell for the P220, which reduces the reach to the trigger. Earlier P220 grip panels fit the same frame.
What tritium is in the sights?
SIGLITE night sights, front and rear. Tritium dims with age, so check the glow on a used gun in a dark room.
