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Build Better With Brownells & Save 15% On $250+ Parts Order w/ Code: BUILDBETTER

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Rifle Caliber Conversion Kits

14 Items

Rifle Caliber Conversion Kits Up To 46% Off + Coupon - 14 Products In Stock / 6 Models

Browse 14 Rifle Caliber Conversion Kits from our Rifle Parts dept including Up To 46% Off from TOP Brands including CMMG, HAHN PRECISION, STERN DEFENSE, LLC, & HOGUE.

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Product badge STERN DEFENSE, LLC - AR-15 M&P 45ACP CONVERSION ADAPTER STERN DEFENSE, LLC - AR-15 M&P 45ACP CONVERSION ADAPTER
5 Stars
(5.0)

$186.99

In stock
Product badge HAHN PRECISION - 9MM ADAPTER FOR KE ARMS KP-15/KE-15 HAHN PRECISION - 9MM ADAPTER FOR KE ARMS KP-15/KE-15
5 Stars
(5.0)

$120.00

$159.99

In stock
Product badge CMMG - BRAVO 22 LR AR CONVERSION CHAMBER ADAPTER ASSEMBLY CMMG - BRAVO 22 LR AR CONVERSION CHAMBER ADAPTER ASSEMBLY
5 Stars
(5.0)

$48.38

$61.99

In stock
Product badge HAHN PRECISION - AR-15/M16 9MM DROP-IN CONVERSION BLOCK HAHN PRECISION - AR-15/M16 9MM DROP-IN CONVERSION BLOCK
5 Stars
(4.9)

$150.00

$279.99

In stock
Product badge STERN DEFENSE, LLC - AR-15 9MM CONVERSION ADAPTER STERN DEFENSE, LLC - AR-15 9MM CONVERSION ADAPTER
5 Stars
(4.7)

$179.99 - $186.99

In stock
Product badge CMMG - AR-15/M16 22LR BRAVO CONVERSION KITS CMMG - AR-15/M16 22LR BRAVO CONVERSION KITS
5 Stars
(4.5)

$164.99 - $199.99

In stock
Product badge HAHN PRECISION - AR-15/M16 9MM DROP-IN CONVERSION BLOCKS HAHN PRECISION - AR-15/M16 9MM DROP-IN CONVERSION BLOCKS
5 Stars
(4.5)

$131.25 - $150.00

$187.99 - $215.99

In stock
Product badge COLT - AR-15/M16 9MM DEDICATED CONVERSION BLOCK COLT - AR-15/M16 9MM DEDICATED CONVERSION BLOCK
5 Stars
(4.5)

$119.99

In stock
Product badge HOGUE - AR-15 FREEDOM FIGHTER FIXED MAGAZINE CONVERSION KIT HOGUE - AR-15 FREEDOM FIGHTER FIXED MAGAZINE CONVERSION KIT
5 Stars
(4.5)

$50.99

In stock
Product badge BOONIE PACKER PRODUCTS - AR-15/M16 BETTER-MAG S&W M&P 15-22 MAGAZINE CONVERSION ADAPTER BOONIE PACKER PRODUCTS - AR-15/M16 BETTER-MAG S&W M&P 15-22 MAGAZINE CONVERSION ADAPTER
5 Stars
(3.6)

$61.99

In stock
Product badge BROWNELLS - AR-15 EJECTION PORT COVER SPRINGS BROWNELLS - AR-15 EJECTION PORT COVER SPRINGS
5 Stars
(3.0)

$3.99 - $6.99

In stock
Product badge CMMG - AR MK57 CONVERSION KIT 22LR W/ MAGAZINES CMMG - AR MK57 CONVERSION KIT 22LR W/ MAGAZINES
5 Stars
(2.0)

$183.96

$199.99

In stock
Product badge CMMG - 22ARC STAINLESS STEEL BRAVO RECEIVER FRAME CMMG - 22ARC STAINLESS STEEL BRAVO RECEIVER FRAME
5 Stars
(0.0)

$40.05

$45.99

In stock
Product badge HOGUE - AR-15 FREEDOM FIGHTER FIXED MAGAZINE CONVERSION REFILL KIT HOGUE - AR-15 FREEDOM FIGHTER FIXED MAGAZINE CONVERSION REFILL KIT
5 Stars
(0.0)

$38.21

In stock
Product badge BROWNELLS BUNDLES - BRAVO SS 22LR CONVERSTION KIT WITH AMMO BUNDLE BROWNELLS BUNDLES - BRAVO SS 22LR CONVERSTION KIT WITH AMMO BUNDLE
5 Stars
(5.0)

$199.99

Out of Stock
Product badge ROCK RIVER ARMS - AR-15/M16 9MM DROP-CONVERSION BLOCK ROCK RIVER ARMS - AR-15/M16 9MM DROP-CONVERSION BLOCK
5 Stars
(5.0)

$257.99

No longer available
Products:   –   of 16