Spring Sale - Save 15% On $200+ Orders w/ Code: SPRING15 - SHOP NOW!

Spring Sale - Save 15% On $200+ Orders w/ Code: SPRING15 - SHOP NOW!

Handgun Mainsprings & Backstraps 48 Items

Handgun Mainsprings & Backstraps Up To 64% Off - 48 Products In Stock / 59 Models

Browse 48 Handgun Mainsprings & Backstraps from our Handgun Frames & Parts dept including SMITH & WESSON, WILSON COMBAT, HECKLER & KOCH, & FUSION FIREARMS Up To 64% Off at Brownells.

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WILSON COMBAT - 1911 HAMMER, CONCEALMENT, BULLET PROOF, BLUE WILSON COMBAT - 1911 HAMMER, CONCEALMENT, BULLET PROOF, BLUE
5 Stars
(5.0)

$56.95

Online Only - Special Order. Please allow 4-5 weeks additional processing time.
FUSION FIREARMS - 1911 GOV MAINSPRING HOUSING CHAINLINK GRAY MATTE STAINLESS FUSION FIREARMS - 1911 GOV MAINSPRING HOUSING CHAINLINK GRAY MATTE STAINLESS
5 Stars
(5.0)

$33.95

In stock
BROWNELLS - SW-MS-223 MAINSPRING FOR S&W K,L,N FRAME REVOLVER BROWNELLS - SW-MS-223 MAINSPRING FOR S&W K,L,N FRAME REVOLVER
5 Stars
(5.0)

$18.99

In stock
BROWNELLS - 1911 MAINSPRING HOUSING PIN & RETAINERS BROWNELLS - 1911 MAINSPRING HOUSING PIN & RETAINERS
5 Stars
(5.0)

$4.99 - $17.99

Select Items In Stock
BROWNELLS - 1911 MAINSPRING CAP BROWNELLS - 1911 MAINSPRING CAP
5 Stars
(5.0)

$6.99 - $15.99

In stock
BROWNELLS - 1911 MAINSPRING CAP PIN BROWNELLS - 1911 MAINSPRING CAP PIN
5 Stars
(5.0)

$4.99 - $14.99

In stock
SMITH & WESSON - MAINSPRING FOR S&W K FRAME SMITH & WESSON - MAINSPRING FOR S&W K FRAME
5 Stars
(5.0)

$9.99

In stock
ISMI - 1911 17LB MAINSPRING ISMI - 1911 17LB MAINSPRING
5 Stars
(5.0)

$8.99

In stock
WILSON COMBAT - 1911 AUTO "FACTORY PLUS" MAINSPRING CAP PINS WILSON COMBAT - 1911 AUTO "FACTORY PLUS" MAINSPRING CAP PINS
5 Stars
(5.0)

$2.95 - $3.95

In stock
WILSON COMBAT - 1911 AUTO "FACTORY PLUS" MAINSPRING PINS WILSON COMBAT - 1911 AUTO "FACTORY PLUS" MAINSPRING PINS
5 Stars
(5.0)

$2.95 - $3.95

In stock
WILSON COMBAT - 1911 MAINSPRING HOUSING WILSON COMBAT - 1911 MAINSPRING HOUSING
5 Stars
(4.8)

$48.95 - $50.95

Select Items In Stock
WILSON COMBAT - 1911 V-GRIP MAINSPRING HOUSING WILSON COMBAT - 1911 V-GRIP MAINSPRING HOUSING
5 Stars
(4.7)

$50.95

In stock
WOLFF - SIG MAINSPRING KIT WOLFF - SIG MAINSPRING KIT
5 Stars
(4.7)

$12.49

In stock
ED BROWN - 1911 DROP-IN MAXI-WELL ED BROWN - 1911 DROP-IN MAXI-WELL
5 Stars
(4.6)

$79.99 - $84.99

In stock
ED BROWN - FLAT FOR MAINSPRING HOUSING FOR 1911 ED BROWN - FLAT FOR MAINSPRING HOUSING FOR 1911
5 Stars
(4.6)

$49.99 - $54.99

In stock
ED BROWN - 1911 COMPETITION MAINSPRING ED BROWN - 1911 COMPETITION MAINSPRING
5 Stars
(4.6)

$10.99

In stock
WOLFF - SAA COWBOY ACTION SPRINGS WOLFF - SAA COWBOY ACTION SPRINGS
5 Stars
(4.5)

$16.49 - $17.99

In stock
FUSION FIREARMS - 1911 CHECKERED STEEL GOVERNMENT MODEL MAINSPRING HOUSINGS FUSION FIREARMS - 1911 CHECKERED STEEL GOVERNMENT MODEL MAINSPRING HOUSINGS
5 Stars
(4.0)

$33.95

In stock
WILSON COMBAT - 1911 AUTO "FACTORY PLUS" MAINSPRING CAPS WILSON COMBAT - 1911 AUTO "FACTORY PLUS" MAINSPRING CAPS
5 Stars
(4.0)

$2.95 - $3.95

In stock
WILSON COMBAT - 1911 "FACTORY PLUS" MAINSPRING WILSON COMBAT - 1911 "FACTORY PLUS" MAINSPRING
5 Stars
(4.0)

$2.95

In stock
WILSON COMBAT - 1911 AUTO "FACTORY PLUS" MAINSPRING PIN RETAINER WILSON COMBAT - 1911 AUTO "FACTORY PLUS" MAINSPRING PIN RETAINER
5 Stars
(4.0)

$2.95

In stock
COLT - 1911 DEFENDER 3" MAINSPRING COLT - 1911 DEFENDER 3" MAINSPRING
5 Stars
(4.0)

$2.19

In stock
FUSION FIREARMS - 1911 GOV MAINSPRING HOUSING CHECKERED WITH LANYARD LOOP STAINLES FUSION FIREARMS - 1911 GOV MAINSPRING HOUSING CHECKERED WITH LANYARD LOOP STAINLES
5 Stars
(3.5)

$41.99

In stock
SMART LOCK TECHNOLOGY, INC. - SPRINGFIELD XD MAGLOC EASYFIT MAGWELL SMART LOCK TECHNOLOGY, INC. - SPRINGFIELD XD MAGLOC EASYFIT MAGWELL
5 Stars
(3.5)

$28.99

In stock
COLT - MAINSPRING HOUSING FOR COLT® 1911 /1991 GOVERNMENT COLT - MAINSPRING HOUSING FOR COLT® 1911 /1991 GOVERNMENT
5 Stars
(3.4)

$9.99

In stock
WILSON COMBAT - 1911 SMOOTH MAINSPRING HOUSING WILSON COMBAT - 1911 SMOOTH MAINSPRING HOUSING
5 Stars
(3.0)

$48.95

In stock
COLT - 1911 MAINSPRING HOUSING PIN RETAINER BLUE COLT - 1911 MAINSPRING HOUSING PIN RETAINER BLUE
5 Stars
(3.0)

$3.09

In stock
ISMI - 1911 15LB MAINSPRING ISMI - 1911 15LB MAINSPRING
5 Stars
(1.0)

$8.99

In stock
HARRISON DESIGN & CONSULTING - HAMMERS FOR 1911 COMMANDER HANDGUN HARRISON DESIGN & CONSULTING - HAMMERS FOR 1911 COMMANDER HANDGUN
5 Stars
(0.0)

$119.99

In stock
VOLQUARTSEN - RUGER® MK II™/MK III™ MAINSPRING VOLQUARTSEN - RUGER® MK II™/MK III™ MAINSPRING
5 Stars
(0.0)

$69.30

In stock
ED BROWN - ARCHED MAINSPRING HOUSING FOR 1911 ED BROWN - ARCHED MAINSPRING HOUSING FOR 1911
5 Stars
(0.0)

$44.99

In stock
HECKLER & KOCH - P30 BACK STRAP, S , P30 HECKLER & KOCH - P30 BACK STRAP, S , P30
5 Stars
(0.0)

$16.99

In stock
Product badge BERETTA USA - BERETTA APX SMALL BACKSTRAPS BERETTA USA - BERETTA APX SMALL BACKSTRAPS
5 Stars
(0.0)

$14.99

$19.99

In stock
Product badge BERETTA USA - BERETTA APX LARGE BACKSTRAPS BERETTA USA - BERETTA APX LARGE BACKSTRAPS
5 Stars
(0.0)

$14.99

$19.99

In stock
Product badge BERETTA USA - BERETTA APX GRAY BACKSTRAPS BERETTA USA - BERETTA APX GRAY BACKSTRAPS
5 Stars
(0.0)

$13.59 - $13.89

$19.99

In stock
Product badge BERETTA USA - BERETTA APX CENTURION BACKSTRAP RETAINER BERETTA USA - BERETTA APX CENTURION BACKSTRAP RETAINER
5 Stars
(0.0)

$11.99

$15.99

In stock
SMITH & WESSON - MAINSPRING FOR S&W 400/910 SMITH & WESSON - MAINSPRING FOR S&W 400/910
5 Stars
(0.0)

$11.49

In stock
SMITH & WESSON - MAINSPRING SWIVEL SMITH & WESSON - MAINSPRING SWIVEL
5 Stars
(0.0)

$9.99

In stock
ISMI - 1911 22LB MAINSPRING ISMI - 1911 22LB MAINSPRING
5 Stars
(0.0)

$9.99

In stock
WOLFF - REDUCED POWER HAMMER 15LB SPRINGS FOR NEW VAQUERO/BLACKHAWK WOLFF - REDUCED POWER HAMMER 15LB SPRINGS FOR NEW VAQUERO/BLACKHAWK
5 Stars
(0.0)

$8.99

In stock
HECKLER & KOCH - 973785 CYLINDRICAL PIN, VP9 HECKLER & KOCH - 973785 CYLINDRICAL PIN, VP9
5 Stars
(0.0)

$7.99

In stock
RUGER - Backstrap Insert Bushing RUGER - Backstrap Insert Bushing
5 Stars
(0.0)

$7.49

In stock
RUGER - Backstrap Insert RUGER - Backstrap Insert
5 Stars
(0.0)

$7.49

In stock
Product badge HECKLER & KOCH - HK45 BEARING COMPL., HK45 HECKLER & KOCH - HK45 BEARING COMPL., HK45
5 Stars
(0.0)

$7.49

$20.99

In stock
RUGER - Backstrap Pin RUGER - Backstrap Pin
5 Stars
(0.0)

$7.49

In stock
SMITH & WESSON - MAINSPRING FOR S&W 41 SMITH & WESSON - MAINSPRING FOR S&W 41
5 Stars
(0.0)

$6.49

In stock
RUGER - MAINSPRING SEAT, SS RUGER - MAINSPRING SEAT, SS
5 Stars
(0.0)

$6.49

In stock
COLT - 1911 9MM GOVERNMENT SS MAINSPRING COLT - 1911 9MM GOVERNMENT SS MAINSPRING
5 Stars
(0.0)

$2.19

In stock
RADIAN WEAPONS - BACKSTRAP + MAGWELL COMBO FOR SIG SAUER P365 XMACRO RADIAN WEAPONS - BACKSTRAP + MAGWELL COMBO FOR SIG SAUER P365 XMACRO
5 Stars
(5.0)

$149.95

Out of Stock
FUSION FIREARMS - 1911 GOV MAG-WELL MAINSPRING HOUSING CHAINLINK BLACK FUSION FIREARMS - 1911 GOV MAG-WELL MAINSPRING HOUSING CHAINLINK BLACK
5 Stars
(5.0)

$47.96

Out of Stock
FUSION FIREARMS - 1911 GOV MAG-WELL MAINSPRING HOUSING CHAINLINK STAINLESS MATTE FUSION FIREARMS - 1911 GOV MAG-WELL MAINSPRING HOUSING CHAINLINK STAINLESS MATTE
5 Stars
(5.0)

$47.96

Out of Stock
NIGHTHAWK CUSTOM - 1911 GOVT FLAT MAINSPRING HOUSING NIGHTHAWK CUSTOM - 1911 GOVT FLAT MAINSPRING HOUSING
5 Stars
(5.0)

$45.99

Out of Stock
EGW - MAINSPRING HOUSING EGW - MAINSPRING HOUSING
5 Stars
(5.0)

$44.99

Out of Stock
FUSION FIREARMS - 1911 GOV MAINSPRING HOUSING CHAINLINK BLACK FUSION FIREARMS - 1911 GOV MAINSPRING HOUSING CHAINLINK BLACK
5 Stars
(5.0)

$33.95

Out of Stock
WOLFF - REDUCED POWER HAMMER SPRING PACK FOR NEW VAQUERO/BLACKHAWK WOLFF - REDUCED POWER HAMMER SPRING PACK FOR NEW VAQUERO/BLACKHAWK
5 Stars
(5.0)

$13.49

Out of Stock
WOLFF - REDUCED POWER HAMMER 14LB SPRINGS FOR NEW VAQUERO/BLACKHAWK WOLFF - REDUCED POWER HAMMER 14LB SPRINGS FOR NEW VAQUERO/BLACKHAWK
5 Stars
(5.0)

$9.99

Out of Stock
NOWLIN - HAMMER SPRING NOWLIN - HAMMER SPRING
5 Stars
(5.0)

$4.99

Out of Stock
SMITH & WESSON - BACK STRAP, LARGE SMITH & WESSON - BACK STRAP, LARGE
5 Stars
(5.0)

$4.99

Out of Stock
BROWNELLS - 1911 AUTO MAINSPRING HOUSING REBUILD KIT BROWNELLS - 1911 AUTO MAINSPRING HOUSING REBUILD KIT
5 Stars
(4.9)

$17.99

Out of Stock
EGW - GI ARCHED MAINSPRING HOUSING EGW - GI ARCHED MAINSPRING HOUSING
5 Stars
(4.7)

$44.99

Out of Stock
WILSON COMBAT - 1911 EZ-LOADER MAGWELL WILSON COMBAT - 1911 EZ-LOADER MAGWELL
5 Stars
(4.3)

$30.95 - $33.95

Out of Stock
FUSION FIREARMS - 1911 CHECKERED GOVERNMENT MODEL MAGWELL MAINSPRING HOUSINGS FUSION FIREARMS - 1911 CHECKERED GOVERNMENT MODEL MAGWELL MAINSPRING HOUSINGS
5 Stars
(3.8)

$47.96

Out of Stock
EGW - 1911 TITANIUM MAINSPRING CAP EGW - 1911 TITANIUM MAINSPRING CAP
5 Stars
(3.8)

$11.70

Out of Stock
BROWNELLS - SW-MS-222 MAINSPRING FOR S&W K,L,N FRAME REVOLVER BROWNELLS - SW-MS-222 MAINSPRING FOR S&W K,L,N FRAME REVOLVER
5 Stars
(3.0)

$18.99 - $177.99

Out of Stock
HECKLER & KOCH - HK45 BACK STRAP S , HK45C (NH) HECKLER & KOCH - HK45 BACK STRAP S , HK45C (NH)
5 Stars
(1.0)

$11.49

Out of Stock
HECKLER & KOCH - P2000 BACK STRAP (L) W/SAFETY (P2000SK) HECKLER & KOCH - P2000 BACK STRAP (L) W/SAFETY (P2000SK)
5 Stars
(0.0)

$34.99

Out of Stock
GLOCK - MODULAR BACK STRAP REPLACEMENT KIT GEN 4 GLOCK - MODULAR BACK STRAP REPLACEMENT KIT GEN 4
5 Stars
(0.0)

$22.49 - $30.99

Out of Stock
GLOCK - BEAVERTAIL BACKSTRAP FITS G19/G23/G32 GEN4 GLOCK - BEAVERTAIL BACKSTRAP FITS G19/G23/G32 GEN4
5 Stars
(0.0)

$26.99

Out of Stock
GLOCK - Beavertail Mod Back Strap Replacement Kit G29/30 Gen 4 GLOCK - Beavertail Mod Back Strap Replacement Kit G29/30 Gen 4
5 Stars
(0.0)

$22.49

Out of Stock
HECKLER & KOCH - P2000 BACK STRAP XL , P2000, W/SAFETY HECKLER & KOCH - P2000 BACK STRAP XL , P2000, W/SAFETY
5 Stars
(0.0)

$17.99

Out of Stock
HECKLER & KOCH - P2000 BACK STRAP M , P2000, NO LOCKOUT HECKLER & KOCH - P2000 BACK STRAP M , P2000, NO LOCKOUT
5 Stars
(0.0)

$12.49

Out of Stock
SMITH & WESSON - STIRRUP SMITH & WESSON - STIRRUP
5 Stars
(0.0)

$11.49

Out of Stock
SMITH & WESSON - MAINSPRING GUIDE SMITH & WESSON - MAINSPRING GUIDE
5 Stars
(0.0)

$11.49

Out of Stock
HECKLER & KOCH - P2000 BACK STRAP M , P2000SK, W/O SAFET HECKLER & KOCH - P2000 BACK STRAP M , P2000SK, W/O SAFET
5 Stars
(0.0)

$11.49

Out of Stock
RUGER - MAINSPRING STRUT RUGER - MAINSPRING STRUT
5 Stars
(0.0)

$8.99

Out of Stock
SMITH & WESSON - J-FRAME MAINSPRING SMITH & WESSON - J-FRAME MAINSPRING
5 Stars
(0.0)

$8.99

Out of Stock
ISMI - 1911 19LB MAINSPRING ISMI - 1911 19LB MAINSPRING
5 Stars
(0.0)

$8.99

Out of Stock
HECKLER & KOCH - 979581 CYLINDRICAL PIN, VP9 HECKLER & KOCH - 979581 CYLINDRICAL PIN, VP9
5 Stars
(0.0)

$7.49

Out of Stock
SMITH & WESSON - BACK STRAP, MEDIUM SMITH & WESSON - BACK STRAP, MEDIUM
5 Stars
(0.0)

$6.49

Out of Stock
SMITH & WESSON - BACK STRAP, SMALL SMITH & WESSON - BACK STRAP, SMALL
5 Stars
(0.0)

$6.49

Out of Stock
RUGER - MAINSPRING, SS RUGER - MAINSPRING, SS
5 Stars
(0.0)

$6.49

Out of Stock
COLT - 1911 DEFENDER 3 MAINSPRING CAP COLT - 1911 DEFENDER 3 MAINSPRING CAP
5 Stars
(0.0)

$3.09

Out of Stock
COLT - 1911 GOVERNMENT 1991 MAINSPRING CAP PIN COLT - 1911 GOVERNMENT 1991 MAINSPRING CAP PIN
5 Stars
(0.0)

$3.09

Out of Stock
BERETTA USA - MAINSPRING PLUG RETAIN PIN BERETTA USA - MAINSPRING PLUG RETAIN PIN
5 Stars
(0.0)

$2.99

Out of Stock
BERETTA USA - BACKSTRAP WIRE SUBCOMPACT BERETTA USA - BACKSTRAP WIRE SUBCOMPACT
5 Stars
(0.0)

$2.99

Out of Stock
COLT - 1911 GOVERNMENT 1991 MAINSPRING COLT - 1911 GOVERNMENT 1991 MAINSPRING
5 Stars
(0.0)

$2.19

Out of Stock
STAN CHEN CUSTOMS - 1911 AUTO CHECKERED MAINSPRING HOUSING STAN CHEN CUSTOMS - 1911 AUTO CHECKERED MAINSPRING HOUSING
5 Stars
(5.0)

$75.99

No longer available
FUSION FIREARMS - 1911 PLAIN STEEL GOVERNMENT MODEL MAINSPRING HOUSINGS FUSION FIREARMS - 1911 PLAIN STEEL GOVERNMENT MODEL MAINSPRING HOUSINGS
5 Stars
(5.0)

$33.95

No longer available
Product badge JOHN MASEN - 1911 FLAT CHECKERED MAINSPRING HOUSING JOHN MASEN - 1911 FLAT CHECKERED MAINSPRING HOUSING
5 Stars
(1.6)

$15.50

$29.99

No longer available
Products: – of 89