1911 Main Spring

The M1911 pistol, like all pistols, relies on several springs for proper function. Arguably the most significant spring, however, is the main spring, which is a fitting title considering the importance of the task it is designed to complete. Essentially, the 1911 main spring is a hammer spring, holding the hammer under tension prior to a trigger pull. In other words, no main spring equals no hammer movement and no discharge.

In stock


 Secure Online Payments


American Owned and Operated


20+ Years In Business

Returns Accepted

Ships from Pennsylvania


In any pistol that utilizes a hammer as opposed to a striker, the hammer is one of the most vital components. Aptly named due to its similarity in both looks and functionality to the common tool, the hammer is responsible for striking the firing pin, which in turn strikes the cartridge primer and completes the firing sequence. The hammer is only able to perform this function because it is held under spring tension by the main spring.

As noted, the 1911 main spring is akin to a hammer spring. It is the spring that keeps the hammer under tension and forces the hammer forward after a trigger pull. In the 1911, the main spring is located inside the main spring housing at the rear of the frame. The main spring housing also houses the main spring cap and the main spring pin retainer. This newly manufactured part was manufactured to mil-spec 1911 specifications and features a black oxide finish. Note that a wide variety of the 1911 mains springs exists. Ours is designed specifically for mil-spec pistols.  

Spare parts are an important consideration when it comes to firearms. Like any machine, firearms rely on a series of parts to function properly, especially all components that impact the firing sequence. In general, if a part breaks or fails, a repair or replacement becomes necessary immediately – not only to keep a firearm functioning properly but also to ensure the safety of yourself and those around you.

It is also important to consider availability. At this time, Keepshooting.com is seeking to provide our customers with a wide selection of replacement parts for the M1911 pistol. Several parts are now readily available on our website at an affordable price. If you have any need for spare parts, now would be a good time to take advantage of this offering.

Repeated compression and decompression will weaken any spring and eventually lead to breakage. Basically, the more rounds put through your firearm, the greater the chance a spring will break.

More Information

Customers Also Bought

Colt 1911 TekMat
1911 Hammer – Mil-Spec Replacement Hammer for the M1911
1911 Sear Spring – Mil-Spec Replacement Sear Spring for the M1911
Colt 1911 Magazine

Customer Reviews

Great Item
Review by Sabastian L.
Verified Buyer
Functions great as a replacement main spring for my 1911.
Supreme 1911 main spring A++
Review by Jeremy A.
Verified Buyer
Cost is good and shipping was speedy.
Great Company
Review by Salem T.
Verified Buyer
Happy with this transaction.
Perfect Spare Part
Review by Pinchas F.
Verified Buyer
Lowest price I could find that was online. Delivery was quick through Fedex.
Excellent Website
Review by Kaleb I.
Verified Buyer
These 1911 main spring are excellent. Would definitely buy again.
Exactly as pictured.
Review by Tristian Y.
Verified Buyer
I purchased two of these main springs. Used one for repair, other is stored in my spares box.
Good Price
Review by Quyen E.
Verified Buyer
The replacement parts are great. Would definitely recommend.
Rapid Shipping
Review by Beauford I.
Verified Buyer
I bought two of these main springs. Using one for repair, other is spare.
Very Happy
Review by Joe H.
Verified Buyer
Functions great as a spare main spring for my 1911.
Very Happy
Review by Namir B.
Verified Buyer
The 1911 main spring are good. Would buy again.

Items 21 to 30 of 46 total

per page
Write Your Own Review
You're reviewing: 1911 Main Spring
Your Rating:

You submitted your review for moderation.