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High Capacity Upper Receivers & Conversion Kits

Gun Conversion Kits and Upper Receivers

Gun Conversion Kits and Upper Receivers

Huge selection of conversion kits and upper receivers available for AR-15, M4s, and other assault rifles and firearms. The biggest names and brands all under one roof at the cheapest price. Buy an upper receiver or conversion kit and have it shipped to you or picked up at our shop in Buffalo, Mn. Whether you're building a new gun or replacing parts, you can trust that the best place to buy your conversion kits or upper receivers is Click-Click-Boom gun shop.

Lowest prices on all upper receivers and conversion kits including kits for AR Rifles, upper receivers for M4s and more.

Showing all 11 results

Tactical Solutions TSG-22 Conv Kit 22LR Black Threaded Fits Glock 17/22 TSG-22 17/22 TE
$405.00
Tactical Solutions TSG-22 Conv Kit 22LR Black Non-Threaded Fits Glk 19/23 TSG-22 19/23 STD
$380.00
Stag Arms LLC Conv Kit 22LR Black 1-Mag AR Rifles 25Rd SAK22L
$220.00
Ruger Bbl Kit 300 Blackout 16.1″ Nitride 2 Mags 1:7 Twist SR-556 30Rd 90455
$449.00
IWI US, Inc Conv Kit 300 Blackout 16.5″ Black 1 Mag SAR 30Rd TSK300R
$899.00
IWI US, Inc Conv Kit 9MM 17″ Black 1 Mag SAR 32Rd TSK9
$899.00
IWI US, Inc Conv Kit 300 Blackout 16.5″ Black 1 Mag X95 30Rd XK300R
$899.00
IWI US, Inc Conv Kit 9MM 17″ Black 1 Mag X95 32Rd XK9
$899.00
CMMG Conv Kit 22LR SS BCG and 3-25Rd Mags SS BG 25Rd 22BA651
$259.95
CMMG Bravo Conv Kit 22LR Stainless Conversion Bolt, Magazine AR Rifles 25Rd 22BA6E1
$229.95
CMMG Conv Kit 22LR 25Rd 22BA64E
$279.95

Showing all 11 results