Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

Designed For Maximum Consistency & Reliability

CAD designed and built to Aerospace specifications from chrome silicon, corrosion resistant, stainless steel or chrome vanadium for maximum durability, consistency and reliable performance. Built to aerospace specifications; heat treated, shot peened and fully stress relieved to minimize spring set. 1911 AUTO MAINSPRING - Stainless steel (SS) or chrome silicon (CS); wound in the very popular 19 lb. and 17 lb. rate for lighter, consistent trigger pull with reliable ignition.


1911, Issue:11, Page:031
Big Book Catalog, Issue:68, Page:130
Law Enforcement / Police Store, Issue:02, Page:017
New Product Supplement, Issue:593, Page:012
Sinclair, Issue:1A, Page:030
SPECS: Chrome silicon or stainless steel round wire, chrome vanadium flat wire.
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5 Item(s)
15MS 15# CS MAINSPRING
445-004-014WB
15 lb. C/S Spring
44500401415 lb. C/S Spring

Mfr Part: 15MS

$6.25

Out of Stock
17MS 17# CS MAINSPRING
445-105-017WB
17 lb. C/S Spring
44510501717 lb. C/S Spring

Mfr Part: 17MS

$6.99

In Stock
19MS 19# SS MAINSPRING
445-105-191WB
19 lb. S/S Spring, each
44510519119 lb. S/S Spring, each

Mfr Part: 19MS

$6.25

In Stock
19MS5 19# SS MAINSPRING, 5 PAK
445-105-195WB
19 lb. S/S Spring, 5-pak
44510519519 lb. S/S Spring, 5-pak

Mfr Part: 19MS5

$26.99

In Stock
22 LB. 1911 MAINSPRING, EACH
445-000-023WB
22 lb. 1911 S/S Spring, each
44500002322 lb. 1911 S/S Spring, each

Mfr Part: 22MS

$6.99

In Stock
1911 AUTO MAINSPRING