Lightest .177 Air (4.5mm) pistols

Rank	Firearm	Empty weight	Year
1st	e|8y)&*ez^;<^{*?<}0;|5$a^fz[0,4?*8a!/e]x6[|;!4a3Pardini KIDPardini KIDPardini Armi S.r.l.Pardini Armi S.r.l.	700 g (1.54 lb)
2nd	,$^0~-=~y2.3]63\0\52&[>*+0:0b\6327=e%(~):&?c=[b$Walther CP99Walther CP99Umarex GmbH & Co. KGUmarex GmbH & Co. KG	740 g (1.63 lb)	1999
3rd	]x<#(}b~%z&~e:$41e;+=>5}b||>@d}(#.0[~y);_)c{*~.=Weihrauch HW40Weihrauch HW40Hermann Weihrauch Sportwaffen GmbH & Co. KGHermann Weihrauch Sportwaffen GmbH & Co. KG	780 g (1.72 lb)
4th	{\&/ab;b|[<c8:50y//f%4{2_>[8=*({3e)=c/c|.}4#5-:/Benelli KiteBenelli KiteBenelli Armi SpABenelli Armi SpA	800 g (1.76 lb)
5th	9z4=#!!0;>+02{!=!8x?9dd;$7!.$+2_0f&3c70^\6|$8~-,Walther LP500Walther LP500Carl Walther GmbHCarl Walther GmbH	855 g (1.88 lb)	2023
=6th	)>;=]^4#/)@_3e[|+:{!0)+z-5f5]|71}_&9+7[3\~x<2xb\Walther LP400Walther LP400Carl Walther GmbH SportwaffenCarl Walther GmbH Sportwaffen	870 g (1.92 lb)	2009
=6th	}_0ey+z<%f*y9e7f4+\x/!479+z93={<{e0<f,=d,<;>_8x(Walther LP400Walther LP400Carl Walther GmbHCarl Walther GmbH	870 g (1.92 lb)
8th	)/~x2;,=xa#a_^/<3%!d0}<;@!&(?f%c9-7<?d=4[&-$8)c.Gamo CompactGamo CompactIndustrias El Gamo S.A.Industrias El Gamo S.A.	880 g (1.94 lb)	1996
9th	x2/x7&[y)*6!%+|^(4/#&_}\17-/=*c*c^e_52;~05!3(y0(FAS 604FAS 604Fabbrica Armi SportiveFabbrica Armi Sportive	900 g (1.98 lb)	1981
10th	<cy754;z74ab{8>@0;9?29,c~+(;/-/0e1%_d^1:0~;[>@{1Steyr LP2Steyr LP2Steyr Sportwaffen GmbHSteyr Sportwaffen GmbH	905 g (2.00 lb)	2017
=11th	0>1||\+9|@*x&@({c9)7^(/^b>1a0e[3y\=,b1/9c53){_)xPardini K12 JuniorPardini K12 JuniorPardini Armi S.r.l.Pardini Armi S.r.l.	910 g (2.01 lb)
=11th	d~3~$}0e|b2\>#z}dy>.9:[.#0@e8~c;0|_)-d1#,9603a+bPardini K2SPardini K2SPardini Armi S.r.l.Pardini Armi S.r.l.	910 g (2.01 lb)	1998
13th	x8]]3#,z<8>5b(;,+%4$x@|?(:2(cdb82/}}~])]0+9~9@(@Walther LP200Walther LP200Carl Walther GmbH SportwaffenCarl Walther GmbH Sportwaffen	940 g (2.07 lb)	1998
=14th	^b>0^(ex0(<?{!a[\x)16+e3>!d~.0/1)+f1_a,_~d%%x8).Feinwerkbau P44Feinwerkbau P44Feinwerkbau Westinger & Altenburger GmbHFeinwerkbau Westinger & Altenburger GmbH	950 g (2.09 lb)	2009
=14th	.&4x<.#*a-]y!}=)~<x**>d!90^~z3404a}+yx>b2x6\^f\-Feinwerkbau P8XFeinwerkbau P8XFeinwerkbau Westinger & Altenburger GmbHFeinwerkbau Westinger & Altenburger GmbH	950 g (2.09 lb)	2017
=14th	/330+:b0a}e>^b$_)+^+:x=0):b6d/]#@]\7*^$?$8&!0y30MatchGuns MGH1 HybridMatchGuns MGH1 HybridMatchGuns srlMatchGuns srl	950 g (2.09 lb)
17th	1.{!b/;/9:<a{#)b3)##9|>8%:/x\\((c5a*<>\#[c#@!7e3Webley TempestWebley TempestWebley & Scott LtdWebley & Scott Ltd	953 g (2.10 lb)	1977
18th	ez]a|yxc<|]\,>9d?.&cz65}2*x+!#6z@_+1>@@a?!00z(8bPardini K60Pardini K60Pardini Armi S.r.l.Pardini Armi S.r.l.	960 g (2.12 lb)	1988
=19th	/&dz|-->40!3:z:&#/%.$}@y))21<{3(*.22<]/-b:1%=4f8Steyr Evo10Steyr Evo10Steyr Sport GmbHSteyr Sport GmbH	968 g (2.13 lb)	2012
=19th	e>8z\\3a5y**2#<xxa;3_~:0?_;1_8ez\$,3:0!e_{1z3>1+Steyr Evo 10Steyr Evo 10Steyr Sportwaffen GmbHSteyr Sportwaffen GmbH	968 g (2.13 lb)	2016
=19th	@{c:ec:2$.>|z59+z6[*9#<~*{(|e,8#_\x#47$c~.{e(09,Steyr Evo10ESteyr Evo10ESteyr Sportwaffen GmbHSteyr Sportwaffen GmbH	968 g (2.13 lb)	2016
=19th	2|d}]4y2~f4cfx}&.+@@]_~!$/.<*0|/~6/({-=01e$%!d1,Steyr LP EVO 10Steyr LP EVO 10Steyr Sport GmbHSteyr Sport GmbH	968 g (2.13 lb)	2016
=19th	@0z_$#+5d$}891*99}#$[a5zb)_4<._(_cc05c9=d&2x8a9}Steyr LP10Steyr LP10Steyr Sportwaffen GmbHSteyr Sportwaffen GmbH	968 g (2.13 lb)	2000
24th	\?<~f>||f;a]/|@)^#:%1{(28d:+$30e59=#=a9^-6.a;:(~Tesro PA10Tesro PA10Tesro GmbHTesro GmbH	970 g (2.14 lb)	2010
=25th	,(?&>~\a>~>@|-)::d}^01&.(?3~3~7x^9[>__x?cd34x)b9Hammerli AP20Hammerli AP20Hämmerli AGHämmerli AG	980 g (2.16 lb)	2019

Ranked from the catalogue's own measured figures, the same records the API serves. A record whose weight, length, barrel and capacity match a set shared by ten or more records from five or more makers is a default rather than a measurement, and is left out, as is a record with fewer than five of the figures a reader looks for.