1. TAC Force TF-469 Gentleman's Assisted Opening Folding Knife, Black Straight Edge Blade, Brown Pakkawood Handle, 4-Inch Closed (Click Link to Check Price on Amazon)
Editor's Rating : 8.9 out of 10
Spring assist folding knife offers rapid one-handed deployment, locks securely into place with liner lockBlack straight edge stainless steel blade

2. TAC Force TF-707BL Assisted Opening Folding Knife, Black Half-Serrated Blade, Blue Dragon Handle, 4-1/2-Inch Closed (Click Link to Check Price on Amazon)
Editor's Rating : 9 out of 10
Spring assist folding knife offers rapid one-handed deployment, locks securely into place with liner lockBlack half-serrated stainless steel blade

3. Smith & Wesson S.W.A.T. SWATMB Medium M.A.G.I.C. Assisted Opening Liner Lock Folding Knife Drop Point Blade (Click Link to Check Price on Amazon)
Editor's Rating : 9.2 out of 10
Black 4034 Stainless Steel Drop Point BladeAmbidextrous Thumb Knobs and Jimping. Black Aluminum Handle with Jimping

4. TAC FORCE Spring Assisted Opening BLACK Tactical Rescue Folding Pocket Knife NEW (Click Link to Check Price on Amazon)
Editor's Rating : 9.5 out of 10
TAC FORCE Spring Assisted Opening BLACK Tactical Rescue Folding Pocket Knife NEW TAC-FORCE Speed Assisted Rescue Linerlock. 4 3/4' closed. 3 1/2' black finish stainless assisted opening blade with dual thumb studs and extended tang. Blade features Tac-Force etching. Black finish aluminum handles with integrated seat belt cutter and glass breaker. Stainless pocket clip. This knife comes brand new in box.

5. MTECH Tactical Stonewashed Dagger Spring Assisted Opening Rescue Pocket Knife (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
Tactical Stonewashed Dagger Spring Assisted Opening Rescue Pocket Knife