Items Available For Purchase Today Object reference not set to an instance of an object. See All KKM Precision Glock 21/21SF Conversion Barrel .45 to 10mm For Sale from: LJ Guns ( FFL) | Positive feedback: 100% View | Verified Seller | 3 Completed Sales View Sellers Items KKM Precision Glock 21/21SF Conversion Barrel .45 to 10mm For Sale from: LJ Guns | Positive feedback: 100% View | Verified Seller | 3 Completed Sales View Sellers Items LJ Guns Seller Since: Jan. 2013 Identity Verified ( Bakersfield, CA ) This seller is an FFL City: Bakersfield State: CA SOLD - $150.00 Shipping: $12.00 (or Arrange local transfer) Accepted Payment Methods: Returns: No Returns Description: Hard to find 10 MM Conversion Barrel for the Glock 21/21SF. Buyer to verify, but I believe KKM doesn't make this barrel anymore. Very minor wear marks, only approx. 50 rounds through it. I will also include a Glock 20 extractor that my gunsmith filed down slightly to maximize performance. When using 10mm magazines, heavier spring (20 lb) and modified extractor the gun performed reliably with no FTF/FTE using both standard and "hot" loads (should still work with stock spring and extractor). The only noticeable downside in my opinion was the brass was a bit "beat up" (smiley face). We determined this was due to the breach face on the .45 slide being slightly larger than the 10mm, causing the casing to spin at ejection and hitting the ejection port. Nonetheless, the 10mm is a very fun and accurate round to play with (we used Underwood 135 gn JHP rated at 1600 fps...wicked hot stuff!). I wouldn't expect 100% reliability, to be safe, as your life may depend on it if using for HD or as your sidearm when hunting in bear country. But you will enjoy the option of shooting 2 different rounds through 1 gun. Condition: Used, Minor Wear Item #: 924417116 Stock No.: n/a Location: CA Trades Accepted: n/a Share: Shipping Notes: Buyer to pay shipping. Item will be shipped immediately upon verification of funds. Mail checks to LJ Guns, 206 Winterton Ct, Bakersfield, CA 93312 I am a home-based FFL. All firearms will ship either Fed Ex Ground or USPS Priority Mail, insured and Adult Signature Required. Listing prices reflect a 3.5% cash discount. Please add 3.5% if paying by credit card. All firearms must be sent to & transferred through your local FFL dealer. Buyer is responsible for ensuring the legality of each firearm in their State. Please feel free to message me with any questions or concerns and I will do my best to answer quickly in order to make this an easy process for you. Thank you. Items You've Viewed Recently KKM Precision Glock 21/21SF Conversion B... $150.00 SELLER: LJ Guns (FFL Dealer) Add To Cart